If 5tanθ=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 Divide the numerator and denomenator by cosθ 5sinθ−3cosθcosθ5sinθ+2cosθcosθ⇒5sinθ3cosθ−3cosθcosθ5sinθcosθ+2cosθcosθ⇒5tanθ−35tanθ+2 Substituting the value of 5tanθ, we get ⇒4−34+2=16