secA/cotA+tanA=sinA
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Step-by-step explanation:
Denominator=cotA+tanA
=1/tanA+tanA
=(1+tan^2A)/tanA
=sec^2A/tanA
Numerator=secA
Numerator/Denominator=secA÷sec^2A
tanA
=secA×tanA
sec^2A
=tanA/secA
=tanA×cosA
=sinA×cosA
cosA
=sinA
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