3tanA=4,find 4 cosA-sina÷2cosA+sinA=4/5
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Step-by-step explanation:
tan A=4/3 = P/B
H=5
PTV
4x3/5-4/5/2x3/5+4/5=4/5
12/5-4/5/6/5 + 4/5=4/5
8/5/10/5
8/10
4/5 =LHS
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