Question

y=sinx*√cos(2*x) производная

Answer 1

$y=sinxcdot sqrt{cos2x}\\y'=cosxcdot sqrt{cos2x}+sinxcdot frac{1}{2sqrt{cos2x}} cdot (-sin2x)cdot 2=\\=cosxcdot sqrt{cos2x}- frac{sinxcdot sin2x}{sqrt{cos2x}}$