1,y=3sin(2x+3)y'=3cos(2x+3)*(2x+3)'=3cos(2x+3)*2=6cos(2x+3)2,y=ln(sin4x)y'=(1/sin4x)*(sn4x)'=(1/sin4x)*cos4x*(4x)'=cot4x*4=4cot4x3,y=ln(1+x²)y'=1/(1+x²)*(1+x²)'=1/(1+x²)*2x=2x/(1+x...