Asked by lilpump
1 - (sin^2x / 1+cosx) = cosx
Answers
Answered by
Damon
1 - ( [1-cos^2]/[1+cos] ) = ? cos
1 - (1-cos)(1+cos)/(1+cos) = ? cos
1 - (1-cos) = ? cos
yes
cos = cos :)
1 - (1-cos)(1+cos)/(1+cos) = ? cos
1 - (1-cos) = ? cos
yes
cos = cos :)
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