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If acos^2theta+3acosthetas in^2theta=ma ...

If `acos^2theta+3acosthetas in^2theta=ma n das in^3theta+3acos^2thetas in^theta=n` , then prove that: `(m+n)^(2//3)+(m-n)^(2//3)=2a^(2//3)`

A

`a^(2//3)`

B

`a^(4//3)`

C

`2a^(2//3)`

D

`2a^(4//3)`

Text Solution

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The correct Answer is:
C
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