definite-integral

Question: $\int_{\,-\,1}^{\,0}{\frac{dx}{{{x}^{2}}+2x+2}=}$



1) 0
2) $\pi /4$
3) $\pi /2$
4) $-\pi /4$
Solution: Explanation: No Explanation
Fundamental definite integration Definite integration by substitution

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