Given tan0=4/3 and sin(-4/5),finde cos 0

 x=theta 
so we know that tanx = sinx/cosx 
therefore is tanx = 4/3 and sinx = -4/5 
we can set up an equation to find cosx 
so 4/3 = (-4/5)/cosx 
we can multiply x to have cosx(4/3)=-4/5 
we can then divide 4/3 over so we have 
cosx = (-4/5)/(4/3) 
therefore, cos x = -3/5

there is the answer

i hope this help