<PRE><B>Question 304573</B>
i must show that cos theta=sinthetacottheta. i would appreciate any help possible. thank you

cos(theta) = sin(theta) * cot(theta)
use sohcahtoa, sin = opp/hyp, cosine= adj/hyp, tan = opp/adj, cot=1/tan
sin/cos = opp/hyp * hyp/adj = opp/adj = tan
divide both sides by cos(theta)
1 = sin(theta) * 1/cos(theta) * cot(theta)
1 = tan(theta) * cot(theta)
tan and cot are reciprocals of one another
1 = 1
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