SOLUTION: Prove that (sec α + tan α)(1 − sin α) = cos α

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Question 1098875: Prove that
(sec α + tan α)(1 − sin α) = cos α
Answer by Alan3354(69443) About Me  (Show Source):
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Prove that
(sec + tan)(1 - sin) = cos
(1/cos + sin/cos)*(1 - sin) = cos
Multiply by cos
(1 + sin)*(1 - sin) = cos^2
1 - sin^2 = cos^2