`int e^(2x + 5)dx`का मान ज्ञात कीजिये

1.	`int e^(2x + 5)dx`का मान ज्ञात कीजिये ।
Answer» माना `I = int e^(3x +5) dx " "....(1)` माना `3x + 5 = t` `therefore" "3.1 + 0 = (dt)/(dx)` `rArr" "dt = 3dx " "rArr dx = (1)/(3)dt` अतः समय (1 ) से `I = int e^(t)((1)/(3))dt = (1)/(3) int e^(t) dt = (1)/(3) e^(t) = (1)/(3)e^(3x+5)`

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