Question

If acos 3 θ + 3asin 2 θcosθ = m and asin 3 θ + 3asinθcos 2 θ = n, then find the value of (m +
n) 2/3 + (m –
n) 2/3 .

A a⅔
B 2(a)⅔
C (asinθ cos θ)⅔
D 2(a)⅓
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