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f: R to R and g: [0,oo)to R is defined b...

`f: R to R` and `g: [0,oo)to R` is defined by `f(x) = x^(2)` and `g(x) = sqrtx`. Which one of the following is not true?

A

gof (4) = 4

B

fog (2) = 2

C

fog (- 4) = 4

D

gof (- 2) = 2

Text Solution

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The correct Answer is:
C
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