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∫2,-2(sinx+2)dx=?
人气:175 ℃ 时间:2020-10-02 04:56:28
解答
原式=∫sinxdx+∫2dx
=-cosx+2x (-2,2)
=(-cos2+4)-[-cos(-2)-4]
=-cos2+4+cos2+4
=8
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