Question: For the following exercises, determine if the given identities are equivalent. (1 cosx)(1+ cosx) cosx sin x + secx-1=-

For the following exercises, determine if the given identities are equivalent. 

(1 cosx)(1+ cosx) cosx sin x + secx-1=-

(1 cosx)(1+ cosx) cosx sin x + secx-1=-

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