cos平方微分1、dcos(x^2)=-sin(x^2)d(x^2)=-2xcos(x^2)dx 20 02 2017 ... dy= cos^2 2x'dx= 2cos2x cos2x'dx= 2cos2x-sin2x2x'dx= -2cos2xsin2x2dx= ...
確定! 回上一頁