Question

# If 5θ and 4θ are acute angles satisfying sin 5θ = cos 4θ, then 2 sin 3θ − $\sqrt{3}\mathrm{tan}3\theta$ is equal to (a) 1 (b) 0 (c) −1 (d) $1+\sqrt{3}$

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Solution

## We are given that and are acute angles satisfying the following condition .We are asked to find Where and are acute angles Now we have to find: Hence the correct option is

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