Найдите производную ф-ии. а)f(x)=-sin2x-cos2x б)f (x)=x^2+2cosx г)f (x)=x^3-tg4x д)f (x)=2ctg3x+0,5x^4 2 задание.Найдите производную ф-ии: а)f (x)=x/sinx б)f (x)=cosx/x в)f (x)=x tg x г)f (x)=x ctg x

а) = -2cos2x+2sin2x б) = 2x-2sinx г) = 3x^2 - [latex] \frac{4}{cos^2(4x)} [/latex] д) =  [latex]- \frac{6}{sin^2(3x)} [/latex]+2x^3 2 задание а) = [latex] \frac{sin(x)-x*cos(x)}{sin^2(x)} [/latex] б) = [latex] \frac{-x*sin(x)-cos(x)}{x^2} [/latex] в) = [latex]tg(x) + \frac{x}{cos^2(x)} [/latex] г) = [latex]ctg(x)- \frac{x}{sin^2(x)} [/latex]