99 Percentile Qs Bank for JEE MainMathematicsInverse Trigonometric Functions
If ⁻¹ x- ⁻¹ x= 6 , then x is equal to
Options
- A1 2
- B3 2
- C- 1 2
- D- 3 2
Correct answer
B. 3 2
Step-by-step solution
We have ⁻¹ x- ⁻¹ x= 6 Let A= ⁻¹ x array ll & x= A, A= 1-x^2 and & B= ⁻¹ x & x= B, B= 1-x^2 array Now, aligned (A-B) & = A B- A B & =x x- 1-x^2 1-x^2 & =x^2-1+x^2 ( 6 ) & =2 x^2-1 2 x^2-1 & = 1 2 2 x^2= 3 2 x^2= 3 4 x & = 3 2 aligned