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If acos^3alpha+3acosalphasin^2alpha=m an...

If `acos^3alpha+3acosalphasin^2alpha=m and asin^2alpha+3acos^2alphasinalpha=n` then ` (m+n)^(2/3)+(m-n)^(2/3)=`

A

`2a ^(2)`

B

`2a^(1/3)`

C

`2a^(2/3)`

D

`2a^(3)`

Text Solution

Verified by Experts

The correct Answer is:
C
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