Решите пожалуйста !!!!
1) а) =4х³; б) = cosx + sinx = cos π/4 + sin π/4 = √2/2 + √2/2 =√2; = -sinx +2cosx = - 3*√2/2 + 2*√2/2 = -√2/2; 2) 12x² ×4x³ = [tex] 12x^{5} ; б) = [tex] \frac{x}{y} \frac{8}{ x^{5} } = 8 x^{-5} ; b) = 14[tex] x^{-7} ; г) = 4x³/31;