Can show me how these are equal through trig identities? cosx*tanx=sinx??? How??

cosx tanx =
cosx(sinx/cosx) =
sinx

cos x sin x
--------------- = sin x
cos x

cosx*tanx=sinx ⇒

............sin x
cos x • ------- = sin x.................// cos x cancels with cos x in the denominator
............cos x............................// leaving you with just sin x

tanx=sinx/cosx
so cosx*tanx=sinx