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The function f: X rarr Y defined by f(x)...

The function `f: X rarr Y` defined by `f(x)=sin x` is one-one but not onto, if X and Y are respectively equal to

A

1)`[0, pi] and [0,1]`

B

2)`[-(pi)/(2), (pi)/(2)] and [-1,1]`

C

3)`[0, (pi)/(2)] and [-1,1]`

D

4)`R and R`

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The correct Answer is:
C
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