Производная tg^9*((1-2x)/(3x+1))

(tg^9*((1-2x)/(3x+1)))\'=9tg^8*((1-2x)/(3x+1))*(tg((1-2x)/(3x+1))\'==9tg^8*((1-2x)/(3x+1))*1/cos^2(1-2x)/(3x+1)*((1-2x)/(3x+1))\'==9tg^8*((1-2x)/(3x+1))*1/cos^2(1-2x)/(3x+1)*((1-2x)\'(3x+1)-(1-2x)(3x+1)\')/(3x+2)^2===9tg^8*((1-2x)/(3x+1))*1/cos^2(1-2x)/(3x+1)*(-2(3x+1)-3(1-2x))/(3x+2)^2