If sin A + cos A =m then sin ^6 ...

If ` sin A + cos A =m ` then ` sin ^6 A + cos ^6 A ` is

A

`(4-3(m^2 -1)^2)/(4)`

B

`(4+3(m^2 -1)^2)/(4)`

C

`(3+4(m^2 -1)^2)/(4)`

D

`(3-4(m^2 -1)^2)/(4)`

Verified by Experts

The correct Answer is:

A

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