1.

`e^(2x+3)`

Answer» `inte^(2x+3)dx=inte^(t).(dt)/(2)" माना "2x+3=t`
`=(1)/(2)e^(t)+c" "rArr 2dx=dt`
`=(1)/(2)e^(2x+3)+c" "rArr dx=(dt)/(2)`


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