Asked by leslie

prove the identity: (tan theta)/(csc theta) + 1/(sec theta)= sec theta

Answers

Answered by Reiny
I will use x instead of theta for simpler typing
LS = sinx/cosx(sinx) + cosx
= (sin^2 x + sin^2 x)/cos x after I found a common denomiator of cos x
= 1/cos x
= sec x
= RS
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