1.

इन समक़लानो का मान ज्ञात कीजिएः `int_(-1)^(1) (x+1)dx`

Answer» `underset(-1)overset(1)int dx=[(x^(2))/(2)+x]`
`=[(1)^(2)/(2)+1]-[(-1)^(2)/(2)-1]`
`=3/2-(-1/2)`
`=3/2+1/2=2`


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