verify these identities show work cosx cscx cotx secx cotx tanx sinx 1 cos2x 1 sinx

Verify these identities. (Show work) cosx cscx = cotx secx / cotx + tanx = sinx 1 – (cos^2x / 1 + sinx) = sinx cosx + sinx tanx = secx sinx – sinx cos^2x = sin^3x
 
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