Let f- sin- -2 sin 2- -sin 3- -3 then in -0- number of solutions of f- - 0 is -

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General Solution of tan theta = tan alpha

Let f(θ)= sin...

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Let f(θ)= sinθ +2 sin 2θ -sin 3θ -3 then in θ∈(0,π) number of solutions of f(θ) = 0 is _______

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