Prove that :
1 + CosA + SinA by 1 + cosA - sinA = 1 + sinA/cos A
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Answer:
Step-by-step explanation:
(1+sinA)(1-sinA)/cosA(1-sinA)
=sin2A/cosA(1-sinA)
=cos2A/cosA(1-sinA)
=cosA/(1-sinA)
=1/1/cosA-sinA/cosA
=1/secA-tanA
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