Math, asked by AdvikaRai8008, 4 months ago

CosA-sinA/cosA+sinA=sec2A-tan2A proof that

Answers

Answered by devraj7766

0

Answer:

multiplication of numerator by denominator

Step-by-step explanation:

multiply numerator and denominator by

cosA-sinA

we get (cosA-sinA)^2/cos2A

expanding the numerator we get

1-sin2A/cos2A

we get sec2A- tan2A

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