lim(x->PI/2) COS X/(PI/2)-X
问题描述:
lim(x->PI/2) COS X/(PI/2)-X
答
lim(x->PI/2) COS X/(PI/2)-X =lim(x->PI/2) sin(PI/2-X/(PI/2)-X =lim(x->0) sinx/x=1哦电脑打的就是没有手写的好用,我想想就明白了
lim(x->PI/2) COS X/(PI/2)-X
lim(x->PI/2) COS X/(PI/2)-X =lim(x->PI/2) sin(PI/2-X/(PI/2)-X =lim(x->0) sinx/x=1哦电脑打的就是没有手写的好用,我想想就明白了