lim(1-cosax/sinx^2)(a为常数)的极限.x趋向于o.

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lim(1-cosax/sinx^2)(a为常数)的极限.x趋向于o.lim(1-cosax/sinx^2)(a为常数)的极限.x趋向于o.lim(1-cosax/sinx^2)(a为常数)的极限.x

lim(1-cosax/sinx^2)(a为常数)的极限.x趋向于o.
lim(1-cosax/sinx^2)(a为常数)的极限.x趋向于o.

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

等价无穷小,是0.5a∧2

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