if sin A =4/5 find the value of sinA-cosA/2tanA
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sinA=4/5,cosA=3/5,tan A =4/3
i.e.4/5-3/5=1/5
sinA-cosA=1/5
2tanA=8/3
sinA-cosA/2tanA=1/5×3/8=3/40
i.e.4/5-3/5=1/5
sinA-cosA=1/5
2tanA=8/3
sinA-cosA/2tanA=1/5×3/8=3/40
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