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Find the set of values of parameter a so...

Find the set of values of parameter `a` so that the equation `(sin^(-1)x)^3+(cos^(-1)x)^3=api^3` has a solution.

A

`k gt 1/32`

B

`k=1/32`

C

`k lt 1/32`

D

`k=1`

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The correct Answer is:
A
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