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Iff(x) = sin x + cos x, x in (-oo, oo) a...

If`f(x) = sin x + cos x, x in (-oo, oo) and g(x) = x^(2), x in (-oo, oo)`, then (fog)(x) is equal to a)1 b)0 c)`sin^(2) (x) + cos (x^(2))` d)`sin (x^(2)) + cos (x^(2))`

A

1

B

0

C

`sin^(2) (x) + cos (x^(2))`

D

`sin (x^(2)) + cos (x^(2))`

Text Solution

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The correct Answer is:
D
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