Question: Verify the identity. ( Simplify at each step. ) s e c 7 x t a n 7 x = ( t a n 7

Verify the identity. (Simplify at each step.)
sec7xtan7x=(tan7xtan9x)sec5x
(tan7xtan9x)sec5x=(,x)(1tan2x)(sec5x)
=(tan7x)(,x)
=sec7xtan7x
Verify the identity. ( Simplify at each step. ) s

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