cos(81+theta)=sin(9-theta)
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Answered by
26
Cos(81+theeta)
Sin(90-81-theeta)
Sin(9-theeta)
= rhs
Sin(90-81-theeta)
Sin(9-theeta)
= rhs
Answered by
23
cos(theta) can be written as c sin(90-theta)
similarly,cos(81+theta)=sin(9o-(81+theta)
=cos(81+theta)=sin(90-81-theta)
=cos(81+theta)=sin(9-theta)
similarly,cos(81+theta)=sin(9o-(81+theta)
=cos(81+theta)=sin(90-81-theta)
=cos(81+theta)=sin(9-theta)
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