Prove each of the following identities:

Consider L.H.S. =

=


=


= sin θ cos θ ×


= sin θ cos θ ×


= sin θ cos θ ×


= sin θ cos θ ×


= sin θ cos θ ×


= sin θ cos θ/ sin θ cos θ


= 1


= R.H.S.


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