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Byju's Answer
Standard XII
Mathematics
Standard Formulae - 1
evaluate inte...
Question
evaluate integration of (x-1 /x
2
) e
x
dx
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Solution
Let
I
=
∫
x
-
1
x
2
e
x
dx
=
∫
1
x
-
1
x
2
e
x
dx
=
∫
1
x
.
e
x
dx
-
∫
1
x
2
.
e
x
dx
=
1
x
×
∫
e
x
dx
-
∫
d
dx
1
x
×
∫
e
x
dx
dx
-
∫
1
x
2
.
e
x
dx
=
1
x
.
e
x
-
∫
-
1
x
2
.
e
x
dx
-
∫
1
x
2
.
e
x
dx
=
e
x
x
+
∫
1
x
2
.
e
x
dx
-
∫
1
x
2
.
e
x
dx
=
e
x
x
+
C
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