2
1
+x dx
∫
is equal to
(A)
(
)
2
2
1
1
log
1
C
2
2
x
x
x
x
+
+
+
+
+
(B)
2 23
2(1
)
C
3
+x
+
(C)
2 23
2
(1
)
C
3 x
+x
+
(D)
2
2
2
2
1
1
log
1
C
2
2
x
x
x
x
x
+
+
+
+
+
11 2
8
7
x
x
dx
−
+
∫
 is equal to
(A)
2
2
1 (
4)
8
7
9log
4
8
7
C
2 x
x
x
x
x
x
−
−
+
+
−
+
−
+
+
(B)
2
2
1 (
4)
8
7
9log
4
8
7
C
2 x
x
x
x
x
x
+
−
+
+
+ +
−
+
+
(C)
2
2
1 (
4)
8
7
3
2log
4
8
7
C
2 x
x
x
x
x
x
−
−
+
−
−
+
−
+
+
(D)
2
2
1
9
(
4)
8
7
log
4
8
7
C
2
2
x
x
x
x
x
x
−
−
+
−
−
+
−
+
+
INTEGRALS         331
7 7   Definite Integral
In the previous sections, we have studied about the indefinite integrals and discussed
few methods of finding them including integrals of some special functions In this
section, we shall study what is called definite integral of a function