prove that cos A /1-tan A+ sin A/1-cot A= sin A+ cosA
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Step-by-step explanation:
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Step-by-step explanation:
cosA / 1 - sinA/cosA + sinA/ 1 - cosA/sinA
=> cosA/ cosA - sinA / cosA + sinA / sinA - cosA / sinA
=> A / cosA - sinA + A / sinA - cosA
=>
=>
=> cosA + sinA => RHS
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