求教微积分,第三题,
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求教微积分,第三题,
求教微积分,第三题,
求教微积分,第三题,
lim(1-cos2x)/(xsinx)
=lim(1-1+2sin^2 x)/(xsinx)
=lim2sinx/x
=2
求教微积分,第三题,
求教微积分,第三题,
求教微积分,第三题,
lim(1-cos2x)/(xsinx)
=lim(1-1+2sin^2 x)/(xsinx)
=lim2sinx/x
=2