BITSAT2021MathematicsDifferentiationActual
d d x ( ⁻¹ 1+ x 2 1- x 2 ) is equal to
Options
- A- 1 4
- B1 4
- C- 1 2
- D1 2
Correct answer
A. - 1 4
Step-by-step solution
We have d d x ( ⁻¹ 1+ x 2 1- x 2 )= d d x [ ⁻¹ 1+ (2 ² x 4 -1 ) 1- (1-2 ² x 4 ) ]= d d x ( ⁻¹ . 2 ² x 4 2 ² x 4 ) .= d d x ( ⁻¹ ² x 4 )= d d x ( ⁻¹ x 4 )= d d x ( ⁻¹ ( 2 - x 4 ) )= d d x ( 2 - x 4 )=0- 1 4 =- 1 4