Question

f(2x)=2X的平方+3X-1,则F(X)的导数等于几?要用t=2x来代换

Answer 1

f(2x)=(2X)的平方+3X-1

F(t)=t^2+1.5*t-1

F'(t)=2*t+1.5

f(2x)=2(X的平方)+3X-1

F(t)=0.5*t^2+1.5*t-1

F'(t)=t+1.5