∫dx/x²+2x+2定积分,范围:负无穷到正无穷

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∫dx/x²+2x+2定积分,范围:负无穷到正无穷
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∫dx/x²+2x+2定积分,范围:负无穷到正无穷
∫dx/x²+2x+2定积分,范围:负无穷到正无穷

∫dx/x²+2x+2定积分,范围:负无穷到正无穷