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The function f(x) = 1-x^(3)-x^(5) is dec...

The function `f(x) = 1-x^(3)-x^(5)` is decreasing for

A

`1 le x le 5`

B

`x le 1`

C

`x ge 1`

D

all values of x

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The correct Answer is:
D
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