Trigonometric RatiosHard

Question

If αcos23θ + βcos4θ = 16 cos6θ + 9 cos2θ is an identity then-

Options

A.α = 1, β = 18
B.α = 1, β = 24
C.α = 3, β = 24
D.α = 4, β = 2

Solution

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