If 5 tanθ=4, then value of 5sinθ−3cosθ5sinθ+2cosθ is
A
13
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B
16
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C
45
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D
23
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Solution
The correct option is B16 Given5tanθ=4orsinθcosθ=45∴sinθ=45cosθThegiventrigonometricexpressionis→5sinθ−3cosθ5sinθ+2cosθ(Substitutingsinθ=45cosθ)=5×45cosθ−3cosθ5×45cosθ+2cosθ=4−34+2=16