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Solutions 2. Inverse Trigonometric Functions - Miscellaneous Exercise on Chapter - 2 | Class 12 Mathematics-I - Toppers Study

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Solutions 2. Inverse Trigonometric Functions - Miscellaneous Exercise on Chapter - 2 | Class 12 Mathematics-I - Toppers Study

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Chapter 2 Mathematics-I class 12

Miscellaneous Exercise on Chapter - 2 class 12 Mathematics-I Chapter 2. Inverse Trigonometric Functions

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  • Solutions 2. Inverse Trigonometric Functions - Miscellaneous Exercise On Chapter - 2 | Class 12 Mathematics-I - Toppers Study
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  • Solution Chapter 2. Inverse Trigonometric Functions Class 12
  • Solutions Class 12
  • Chapter 2. Inverse Trigonometric Functions Miscellaneous Exercise On Chapter - 2 Class 12

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2. Inverse Trigonometric Functions

| Miscellaneous Exercise on Chapter - 2 |

Solutions 2. Inverse Trigonometric Functions - Miscellaneous Exercise on Chapter - 2 | Class 12 Mathematics-I - Toppers Study


Find the value of the following:

Ques.1.  

Ans. 

 = 

 i.e., , value of  lies in I quadrant.

 = 

 

 

Ques.2.  

Ans. 

 i.e., , value of  lies in I quadrant.

 = 

 

 

Ques.3. Prove that:  

Ans. Let   so that 

 

 

Since 

 =  = 

 

 

 

 

Ques.4. Prove that:  

Ans. Let  so that 

 

 

Again, Let  so that 

 

 

Since 

 

 

 

 

Ques.5. Prove that:  

Ans. Let  so that 

 

Again, Let  so that 

Since  = 

 

 

 

 

Ques.6. Prove that:  

Ans. Let  so that 

Again, Let  so that 

 

Since 

 = 

 

 

 

 

Ques.7. Prove that:  

Ans. Let  so that 

 

Again, Let  so that 

Since  

 

 

 

 

Ques.8. Prove that:  

Ans. L.H.S. = 

R.H.S.

 

 

Ques.9. Prove that:  

Ans. Let  so that 

 

 

 

 

Ques.10. Prove that:  

Ans. We know that   = 

Again,  

L.H.S. = 

 

 

Ques.11. Prove that:  

Ans. Putting  so that 

L.H.S. = 

Dividing every term by 

 = 

 = R.H.S.

 

 

Ques.12. Prove that:  

Ans. L.H.S. = 

 …(i)  

let  so that 

From eq. (i),  = R.H.S.

 

 

Ques.13. Solve the equation:  

Ans. 

 

 

 

 

 

 

 

Ques.14. Solve the equation:  

Ans. Putting 

 

 

 

 

 

 

 

Ques.15.  is equal to:

(A)  

(B)  

(C)  

(D) 

Ans. Let  where  so that 

 

Putting 

 

Therefore, option (D) is correct.

 

 

Ques.16.  then  is equal to:

(A) 

(B)  

(C) 0

(D)  

Ans. Putting  so that 

 

 

 

 

 

  

 

 

  or 

  or 

But  does not satisfy the given equation.

hance, option (C) is correct.

 

 

Ques.17.  is equal to:

(A) 

(B) 

(C) 

(D)  

Ans. 

hance, option (C) is correct.

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