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Question

Solve the following with the help of relations between trignometric ratios
If tanθ=43, then find the value of 3sinθ+2cosθ3sinθ2cosθ

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Solution

tanθ=43
3sinθ+2cosθ3cosθ2cosθ=3sinθcosθ+23sinθcosθ2
=3tanθ+23tanθ2
3×43+23×432
=4+242=62=3.
3sinθ+2cosθ3cosθ2cosθ=3.

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