lim(1-cosax/sinx^2)(a为常数)的极限.x趋向于o.
问题描述:
lim(1-cosax/sinx^2)(a为常数)的极限.x趋向于o.
答
lim(1-cosax/sinx^2)=limasinax/2xcosx^2)=lima^2sinax/2axcosx^2)=a^2/2
lim(1-cosax/sinx^2)(a为常数)的极限.x趋向于o.
lim(1-cosax/sinx^2)=limasinax/2xcosx^2)=lima^2sinax/2axcosx^2)=a^2/2