JEE Main2005MathematicsFunctionsActual
Let f:(-1,1) B , be a function defined by f(x)= ⁻¹ 2 x 1-x^2 , then f is both one-one and onto when B is the interval
Options
- A(0, 2 )
- B[0, 2 )
- C[- 2 , 2 ]
- D( 2 , 2 )
Correct answer
D. ( 2 , 2 )
Step-by-step solution
Given f(x)= ⁻¹ ( 2 x 1-x^2 ) for x (-1,1) clearly range of f(x)= (- 2 , 2 ) . co-domain of function =B= (- 2 , 2 ) .