Prove that
cot A/1-tanA +
tan A/1-cotA
= 1 + tan A + cot A
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Answer:
tanA/1-cotA=(sinA/cosA)/1-(cosA/sinA). = Sin^2A/(sinA-cosA)*cosA…(1). CotA/1- tanA=(cosA/sinA)/1-(sinA/cosA).
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