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If f:(-oo,2]to (-oo,4] where f(x), then ...

If `f:(-oo,2]to (-oo,4]` where `f(x),` then `f ^(-1) (x)` is given by :

A

`2-sqrt(4-x)`

B

`2+sqrt(4-x)`

C

`2pm sqrt(4-x)`

D

not defined

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The correct Answer is:
A
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OBJECTIVE RD SHARMA ENGLISH-FUNCTIONS-Chapter Test
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  6. Find the inverse of the function, (assuming onto). " " ...

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  12. The function of f:R to R, defined by f(x)=[x], where [x] denotes the g...

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  18. If f: RvecR and g: RvecR are defined by f(x)=2x+3a n dg(x)=x^2+7, then...

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  19. Let f(x) be defined on [-2,2] and be given by f(x)={(-1",",-2 le x l...

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