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If angle θ is divided into two parts such that the tangents of one part is λ times the tangent of other, and ϕ is their difference, then show that sin θ=λ+1λ−1sinϕ. |
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Answer» If angle θ is divided into two parts such that the tangents of one part is λ times the tangent of other, and ϕ is their difference, then show that sin θ=λ+1λ−1sinϕ. |
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