simplify sin theta into cos of 90 minus theta + 1 by 1 + tan squared theta
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heya buddy !
sinA cos(90-A) + 1 + tan^2A
sinA sinA + sec^2A
sin^2A + sec^2A
sinA cos(90-A) + 1 + tan^2A
sinA sinA + sec^2A
sin^2A + sec^2A
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