$f(x)=\{x+1 \quad$ যখন $x=0$

1.   $\int_{- 1}^{- \frac{1}{2}} f{\left ( x \right )} dx = \frac{1}{8}$

2.   $\int_{0}^{1} f{\left ( x \right )} dx = 3/2$

3.   $f{\left ( - 1 \right )} = 1$

নিচের কোনটি সঠিক?

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