Question

упростить выражение
пжж

Answer 1

$(Cos^{4} x+Sin^{2} xCos^{2}x)+Sin^{2}x=Cos^{2}x(Cos^{2}x+Sin^{2}x)+Sin^{2}x=\\\\=Cos^{2}x*1+Sin^{2}x=Cos^{2}x+Sin^{2}x =1\\\\Otvet:\boxed{1}$