(1-SinA/CosA)
is equal to:
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Verified answer
Answer:
cos A/1+sin A
Step-by-step explanation:
let LHS = cos A / 1+sinA
= cos A (1-sinA) / (1+sinA)(1-sinA)
= cos A (1-sinA) / 1-sin^2A
= cos A (1-sinA) / cos^2A
= 1-sinA /cos A
RHS = 1-sinA / cos A
LHS = RHS