diff --git a/app/WordDocs/Addition and Subtraction Formulae.docx b/app/WordDocs/Addition and Subtraction Formulae.docx
new file mode 100644
index 0000000..82cda2c
Binary files /dev/null and b/app/WordDocs/Addition and Subtraction Formulae.docx differ
diff --git a/app/WordDocs/Conditional_Identities-converted.docx b/app/WordDocs/Conditional_Identities-converted.docx
new file mode 100644
index 0000000..00f968f
Binary files /dev/null and b/app/WordDocs/Conditional_Identities-converted.docx differ
diff --git a/app/WordDocs/Double Angle Formulae.docx b/app/WordDocs/Double Angle Formulae.docx
new file mode 100644
index 0000000..95b48c6
Binary files /dev/null and b/app/WordDocs/Double Angle Formulae.docx differ
diff --git a/app/WordDocs/Transformation Formulae.docx b/app/WordDocs/Transformation Formulae.docx
new file mode 100644
index 0000000..f09546a
Binary files /dev/null and b/app/WordDocs/Transformation Formulae.docx differ
diff --git a/app/WordDocs/Trigonometric ratios and functions.docx b/app/WordDocs/Trigonometric ratios and functions.docx
new file mode 100644
index 0000000..27f514f
Binary files /dev/null and b/app/WordDocs/Trigonometric ratios and functions.docx differ
diff --git a/app/src/main/assets/add_sub.pdf b/app/src/main/assets/add_sub.pdf
index d2d69d1..4404046 100644
Binary files a/app/src/main/assets/add_sub.pdf and b/app/src/main/assets/add_sub.pdf differ
diff --git a/app/src/main/java/com/example/trigonometry/QuizActivity.kt b/app/src/main/java/com/example/trigonometry/QuizActivity.kt
index 7134882..daffa29 100644
--- a/app/src/main/java/com/example/trigonometry/QuizActivity.kt
+++ b/app/src/main/java/com/example/trigonometry/QuizActivity.kt
@@ -126,11 +126,17 @@ class QuizActivity : AppCompatActivity() {
         if (option != 4)
             option4Selected = false
     }
+    var justClicked = false
+
 
     private fun loadQuestion(quiz : ArrayList<Questions>){
         setOtherButtonsToNormal(1)
         setOtherButtonsToNormal(2)
         if  (index == quiz.size){
+            if (justClicked){
+                return
+            }
+            justClicked = true
             storeAnswer()
             displayResult()
             Log.wtf("TAGGG","index is $index and quizQ size is ${quiz.size}")
@@ -235,31 +241,29 @@ class Quiz (quizName: String){
             "Trigonometric Ratio's values" -> {
                 questionsArray.add(Questions("Value of sin(0)", "1", "0", "-1", "-1",2))
                 questionsArray.add(Questions("Value of cos(0)", "1", "0", "-1", "-1",1))
-                questionsArray.add(Questions("Value of tan(90)", "1", "not defined", "-1", "-1",2))
+                questionsArray.add(Questions("Value of tan(90)", "1", "not defined", "1", "-1",2))
                 questionsArray.add(Questions("Value of sin(30)", "1/2", "0", "1", "-1",1))
-                questionsArray.add(Questions("Value of cot(0)", "not defined", "0", "-1", "-1",1))
-                questionsArray.add(Questions("Value of tan(0)", "1", "0", "-1", "-1",2))
-                questionsArray.add(Questions("Value of cosec(90)", "1", "not defined", "-1", "-1",1))
+                questionsArray.add(Questions("Value of cot(0)", "not defined", "0", "-1", "1",1))
+                questionsArray.add(Questions("Value of tan(0)", "1", "0", "-1", "1",2))
+                questionsArray.add(Questions("Value of cosec(90)", "1", "not defined", "-1", "1",1))
                 questionsArray.add(Questions("Value of sec(30)", "1/2", "0", "2/√3", "-1",1))
             }
             "Basic Trigonometric Formulas" -> {
-                questionsArray.add(Questions("sin(x) * cosec(x) =", "0", "1","-1","1/2",2))
-                questionsArray.add(Questions("cos(x) * sec(x)","1", "infinity","0","2",1))
-                questionsArray.add(Questions("tan(x) * cot(x)","1", "infinity","0","2",1))
-                questionsArray.add(Questions("tan(x) = ","cos(x)/sin(x)","sec(x)/cosec(x)", "sec(x)/cos(x)","cosec(x)/sin(x)",2))
-
-                questionsArray.add(Questions("sin^2(x) + cos^2(x) = ","0","2","3","1",4))
-                questionsArray.add(Questions("1+tan^2(x) = ","cosec^2(x)","sin^2(x)","sec^2(x)","cot^2(x)",3))
-
-                questionsArray.add(Questions("1+cot^2(x) = ","cosec^2(x)","sin^2(x)","sec^2(x)","cot^2(x)",1))
+                questionsArray.add(Questions("sin(x) * cosec(x) = ?", "0", "1","-1","1/2",2))
+                questionsArray.add(Questions("cos(x) * sec(x) = ?","1", "infinity","0","2",1))
+                questionsArray.add(Questions("tan(x) * cot(x) = ?","1", "infinity","0","2",1))
+                questionsArray.add(Questions("tan(x) = ?","cos(x)/sin(x)","sec(x)/cosec(x)", "sec(x)/cos(x)","cosec(x)/sin(x)",2))
+                questionsArray.add(Questions("sin^2(x) + cos^2(x) = ?","0","2","3","1",4))
+                questionsArray.add(Questions("1+tan^2(x) = ?","cosec^2(x)","sin^2(x)","sec^2(x)","cot^2(x)",3))
+                questionsArray.add(Questions("1+cot^2(x) = ?","cosec^2(x)","sin^2(x)","sec^2(x)","cot^2(x)",1))
             }
             "Trigonometric ratios and functions" -> {
-                questionsArray.add(Questions("sin(x)","p/h","p/b","h/b","b/h",1))
-                questionsArray.add(Questions("cos(x)","p/h","p/b","h/b","b/h",4))
-                questionsArray.add(Questions("tan(x)","p/h","p/b","h/b","b/h",2))
-                questionsArray.add(Questions("cosec(x)","p/h","p/b","h/p","b/h",3))
-                questionsArray.add(Questions("sec(x)","p/h","p/b","h/b","b/h",3))
-                questionsArray.add(Questions("cot(x)","b/p","p/b","h/b","b/h",1))
+                questionsArray.add(Questions("sin(x) = ?","p/h","p/b","h/b","b/h",1))
+                questionsArray.add(Questions("cos(x) = ?","p/h","p/b","h/b","b/h",4))
+                questionsArray.add(Questions("tan(x) = ?","p/h","p/b","h/b","b/h",2))
+                questionsArray.add(Questions("cosec(x) = ?","p/h","p/b","h/p","b/h",3))
+                questionsArray.add(Questions("sec(x) = ?","p/h","p/b","h/b","b/h",3))
+                questionsArray.add(Questions("cot(x) = ?","b/p","p/b","h/b","b/h",1))
             }
             "Double Triple Half" -> {
                 questionsArray.add(Questions("sin(2A) = ","2sin(A)sin(A)","2cos(A)sin(A)","2cos(A)cos(A)","2sin(A)cosec(A)",2))
@@ -273,16 +277,15 @@ class Quiz (quizName: String){
             }
 
             "Transformation" -> {
-        questionsArray.add(Questions("2sin(A)cos(B) = ","sin(A+B) - sin(A-B)","sin(A-B) + sin(A-B)","sin(A+B) + sin(A+B)","sin(A+B) + sin(A-B)",4))
-        questionsArray.add(Questions("2cos(A)sin(B) = ", "sin(A+B) - sin(A-B)", "sin(A+B) + sin(A-B)", "sin(A-B) + sin(A-B)", "sin(A+B) + sin(A+B)", 1))
-        questionsArray.add(Questions("2cos(A)cos(B) = ", "sin(A+B) + cos(A-B)", "cos(A+B) + cos(A-B)", "sin(A+B) - cos(A-B)", "cos(A+B) - cos(A-B)",2))
-        questionsArray.add(Questions("2sin(A)sin(B) = ", "sin(A+B) - sin(A-B)", "sin(A+B) - cos(A-B)", "cos(A+B) - cos(A-B)", "cos(A+B) + cos(A-B)",3))
-
-        questionsArray.add(Questions("sin(A) + sin(B) = ","2cos((A+B)/2)sin((A-B)/2)","2sin((A-B)/2)cos((A-B)/2)","2sin((A+B)/2)cos((A+B)/2)","2sin((A+B)/2)cos((A-B)/2)",4))
-        questionsArray.add(Questions("sin(A) - sin(B) = ","2cos((A+B)/2)sin((A-B)/2)","2sin((A-B)/2)cos((A-B)/2)","2sin((A+B)/2)cos((A+B)/2)","2sin((A+B)/2)cos((A-B)/2)",1))
-        questionsArray.add(Questions("cos(A) + cos(B) = ","2cos((A+B)/2)sin((A-B)/2)","2sin((A-B)/2)cos((A-B)/2)","2cos((A+B)/2)cos((A-B)/2)","2sin((A+B)/2)cos((A-B)/2)",3))
-        questionsArray.add(Questions("cos(A) - cos(B) = ","2cos((A+B)/2)sin((A-B)/2)","2sin((A+B)/2)sin((A-B)/2)","2sin((A+B)/2)cos((A+B)/2)","cos((A+B)/2)cos((A-B)/2)",2))
-    }
+                questionsArray.add(Questions("2sin(A)cos(B) = ","sin(A+B) - sin(A-B)","sin(A-B) + sin(A-B)","sin(A+B) + sin(A+B)","sin(A+B) + sin(A-B)",4))
+                questionsArray.add(Questions("2cos(A)sin(B) = ", "sin(A+B) - sin(A-B)", "sin(A+B) + sin(A-B)", "sin(A-B) + sin(A-B)", "sin(A+B) + sin(A+B)", 1))
+                questionsArray.add(Questions("2cos(A)cos(B) = ", "sin(A+B) + cos(A-B)", "cos(A+B) + cos(A-B)", "sin(A+B) - cos(A-B)", "cos(A+B) - cos(A-B)",2))
+                questionsArray.add(Questions("2sin(A)sin(B) = ", "sin(A+B) - sin(A-B)", "sin(A+B) - cos(A-B)", "cos(A+B) - cos(A-B)", "cos(A+B) + cos(A-B)",3))
+                questionsArray.add(Questions("sin(A) + sin(B) = ","2cos((A+B)/2)sin((A-B)/2)","2sin((A-B)/2)cos((A-B)/2)","2sin((A+B)/2)cos((A+B)/2)","2sin((A+B)/2)cos((A-B)/2)",4))
+                questionsArray.add(Questions("sin(A) - sin(B) = ","2cos((A+B)/2)sin((A-B)/2)","2sin((A-B)/2)cos((A-B)/2)","2sin((A+B)/2)cos((A+B)/2)","2sin((A+B)/2)cos((A-B)/2)",1))
+                questionsArray.add(Questions("cos(A) + cos(B) = ","2cos((A+B)/2)sin((A-B)/2)","2sin((A-B)/2)cos((A-B)/2)","2cos((A+B)/2)cos((A-B)/2)","2sin((A+B)/2)cos((A-B)/2)",3))
+                questionsArray.add(Questions("cos(A) - cos(B) = ","2cos((A+B)/2)sin((A-B)/2)","2sin((A+B)/2)sin((A-B)/2)","2sin((A+B)/2)cos((A+B)/2)","cos((A+B)/2)cos((A-B)/2)",2))
+            }
 
 
             "Conditional Identities" -> {
@@ -290,7 +293,6 @@ class Quiz (quizName: String){
 
             }
             "Trigonometric Equations and general values" -> {
-                //Ishank
                 questionsArray.add(Questions("If 0 <t< 2π such that sin(t) = √2/2 and cot(t)<0,then t=?","π/4","3π/4","5π/4","7π/4",2))
                 questionsArray.add(Questions("If 0 <t< 2π and sin(t) = -1, then t=","π/2","3π/2","5π/4","π",2))
                 questionsArray.add(Questions("If 0 <α< π and cos(α) = -√3/2, then α =","π/6","-π/6","5π/6","7π/6",3))
@@ -300,7 +302,16 @@ class Quiz (quizName: String){
                 questionsArray.add(Questions("Find all values of t such that cos(πt) = 1","t = 2kπ ; k = 0","t = 2k ; k = 0","t = k ; k = 0","t = kπ ; k = 0",2))
             }
             "Addition and Subtraction" ->{
-                //Ishank
+                questionsArray.add(Questions("sin(A+B) = ?","sin(A)cos(B) - cos(A)sin(B)","sin(A)cos(B) + cos(A)sin(B)","sin(A)sin(B) + cos(A)cos(B)","sin(A)sin(B) - cos(A)cos(B)",2))
+                questionsArray.add(Questions("cos(A+B) = ?","cos(A)cos(B) - sin(A)sin(B)","sin(A)cos(B) + cos(A)sin(B)","cos(A)cos(B) + sin(A)sin(B)","sin(A)cos(B) - cos(A)sin(B)",1))
+                questionsArray.add(Questions("sin(A-B) = ?","sin(A)cos(B) + cos(A)sin(B)","sin(A)cos(B) - cos(A)sin(B)","sin(A)sin(B) - cos(A)cos(B)","sin(A)sin(B) + cos(A)cos(B)",2))
+                questionsArray.add(Questions("cos(A-B) = ?","cos(A)cos(B) - sin(A)sin(B)","sin(A)cos(B) + cos(A)sin(B)","cos(A)cos(B) + sin(A)sin(B)","sin(A)cos(B) - cos(A)sin(B)",3))
+                questionsArray.add(Questions("tan(A+B) = ?","tan(A)+tan(B)/1+tan(A)tan(B)","tan(A)-tan(B)/1+tan(A)tan(B)","tan(A)-tan(B)/1-tan(A)tan(B)","tan(A)+tan(B)/1-tan(A)tan(B)",4))
+                questionsArray.add(Questions("tan(A-B) = ?","tan(A)+tan(B)/1+tan(A)tan(B)","tan(A)-tan(B)/1+tan(A)tan(B)","tan(A)-tan(B)/1-tan(A)tan(B)","tan(A)+tan(B)/1-tan(A)tan(B)",2))
+                questionsArray.add(Questions("cot(A+B) = ?","cot(B)cot(A)-1/cot(B)+cot(A)","cot(B)cot(A)-1/cot(B)-cot(A)","cot(B)cot(A)+1/cot(B)+cot(A)","cot(B)cot(A)+1/cot(B)-cot(A)",1))
+                questionsArray.add(Questions("cot(A-B) = ?","cot(B)cot(A)-1/cot(B)+cot(A)","cot(B)cot(A)-1/cot(B)-cot(A)","cot(B)cot(A)+1/cot(B)+cot(A)","cot(B)cot(A)+1/cot(B)-cot(A)",2))
+                questionsArray.add(Questions("sin(A+B+C) = ?","sin(A)cos(B)cos(C) + cos(A)sin(B)cos(C) - cos(A)cos(B)sin(C) - sin(A)sin(B)sin(C)","sin(A)cos(B)cos(C) - cos(A)sin(B)cos(C) + cos(A)cos(B)sin(C) - sin(A)sin(B)sin(C)","sin(A)cos(B)cos(C) + cos(A)sin(B)cos(C) + cos(A)cos(B)sin(C) - sin(A)sin(B)sin(C)","sin(A)cos(B)cos(C) + cos(A)sin(B)cos(C) + cos(A)cos(B)sin(C) + sin(A)sin(B)sin(C)",3))
+                questionsArray.add(Questions("cos(A+B+C) = ?","cos(A)cos(B)cos(C) - cos(A)sin(B)sin(C) - sin(A)cos(B)sin(C) - cos(A)sin(B)sin(C)","cos(A)cos(B)cos(C) + cos(A)sin(B)sin(C) + sin(A)cos(B)sin(C) - cos(A)sin(B)sin(C)","cos(A)cos(B)cos(C) + cos(A)sin(B)sin(C) - sin(A)cos(B)sin(C) - cos(A)sin(B)sin(C)","cos(A)cos(B)cos(C) - cos(A)sin(B)sin(C) - sin(A)cos(B)sin(C) + cos(A)sin(B)sin(C)",1))
             }
 
         }
diff --git a/app/src/main/res/layout/activity_show_result.xml b/app/src/main/res/layout/activity_show_result.xml
index a6d97fe..48bc00f 100644
--- a/app/src/main/res/layout/activity_show_result.xml
+++ b/app/src/main/res/layout/activity_show_result.xml
@@ -5,8 +5,12 @@
         xmlns:app="http://schemas.android.com/apk/res-auto"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        tools:context=".ShowResult">
+        tools:context=".ShowResult" android:orientation="vertical">
 
+    <TextView
+            android:text="TextView"
+            android:layout_width="match_parent"
+            android:layout_height="61dp" android:id="@+id/textView3"/>
     <androidx.recyclerview.widget.RecyclerView
             android:id="@+id/result_recycler_view"
             android:layout_width="match_parent"