cari turunan dari fungsi y=cosxxy=\frac{\cos x}{x}y=xcosx y=cosxxy=\frac{\cos x}{x}y=xcosx y=x2+1xsinxy=\frac{x^2+1}{x\sin x}y=xsinxx2+1 y=1cosxy=\frac{1}{\cos x}y=cosx1 y=cosxsinxy=\frac{\cos x}{\sin x}y=sinxcosx y=tanxsecxy=\tan xsecxy=tanxsecx