NO,
sinxtanx=sinxsinx/cosx since tanx is sinx/cosx
this is sin^2xcosx now add cosx
cosx(sin^2x+1) after factoring
Does this equal tanx?
No, since this would require tanx to equal...
It is NOT equal. Try calculating tan x, and tan 6x, for a few values of "x", on your scientific calculator. Perhaps you are supposed to solve an equation, and see FOR WHAT values of "x" the two are...