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1.
2.
1
sinx dx 4
(a)
x x 8 sin cos c 8 8
(c)
1 x x sin cos c 8 8 8
x x2
1 x
1 x c 1
1
)ex x
4.
(x 1)ex x
xex x
6.
2
ecos
1
x
1/ 2ecos 2
(1 x ) 1 x 2
x
(a)
1
(c)
2 tan1
c (d)
xex x
(x 1)ex x 1
(b) (d)
c
2
1 x2
x 2
tan1
c
1 x2
x 2
1
c
c
2
ecos
c
(b) (d)
acos1 x/a a2 x2 c 1
2
2
1
1
1 1
(a) (b) cos (c)
1
2
x/a
a2 x2 c
2
x dx x cos1 x
x
c
None of these
a x dx a x
(b) acos x / a a x c acos (c) (d) acos x / a a x c
(b)
c
(a)
7.
1
c 2
dx
2(1 x)3 / 2 c
sin2x dx
e
(a) (c) 5.
(d)
2 / 3(1 x)3 / 2 c
dx
(a) (c) cos2 x
x x 8 cos sin c 8 8
(d)
(b)
1/ 2 1 x c
(1 x x
x x sin cos c 8 8
dx
x 1 x
(a) (c) 3.
(b)
x
1 x . ( x 2) c
1 x . ( x 2) c
cos1
x
1 x . ( x 2) c
1 2
x 2
1 x 2
tan1
c
1 x2
x 2
2 tan1
c
(d)None of these 8.
9.
10.
1 2
4
x (x 1)3 / 4
dx
(a)
(x 4 1)1/ 4 c x
(b)
(c)
3 (x4 1)3 / 4 c 4 x
(d)
4 (x4 1)3 / 4 c 3 x
(x 4 1)1 / 4 c x
2 sin3x . cos3x dx
(a)
2 (2 sin3x)1 / 2 c (b) 9
2 (2 sin3x)2 / 3 c 3
(c)
2 (2 sin3x)3 / 2 c (d) 3
2 (2 sin3x)3 / 2 c 9
dx
(2 sinx cosx)2
1 1 c 2 2 tanx 1
(a) 1
(b) 2 log(2 tanx 1) c 1 c 2 cotx
(c) 1
(d) 2 11.
1 c 2 tanx 1
x2 1[log(x2 1) 2logx] dx x4
1 1 1 2 3 x
(a) 1 1 (b) 3 1 x2
3/ 2
is equal to
1/ 2
1 2 log 1 2 c x 3
1 2 log 1 2 c x 3 2 1 1 2 3 x
(c)
3/ 2
1 2 log 1 2 c x 3
(d)None of these 12.
cosx cos3 x
(a)
1 cos3 x
dx
is equal to 2 sin1(cos3 / 2 x) c (b) 3
3 sin1(cos3 / 2 x) c 2
2 cos1(cos3 / 2 x) c (d) 3
(c) 13.
If
means
l'(x)
times, then (a)
logloglog.......logx
None of these
, the
being repeated r
log
1 dx xl(x)l 2 (x)l 3 (x)......l r (x) l r 1(x) c r 1
(b)
l r 1(x) c
l (x) c (c) (d) None of these If c is any arbitrary constant, then 2 2 2 dx is equal to r
x
14.
22
x
22 c (ln2)3
(a) (c) 15.
2x
22
(ln2)3 c
1 dx A (sinx 4)(sinx 1)
If
2x
x
2x
(b)
22 c (ln2)3
(d)
None of these
1 B tan1 ( f(x)) C x , tan 1 2
then (a)
A
(b) A 1 , B 5
x 4 tan 1 1 2 , f(x) 15 15
(c) (d) 16.
A
dx
cos
x 2 sin2x
(a)
tanx
3
x 4 tan 1 2 15
is equal to
tan5 / 2 x c 5
(b)
2 tanx
tanx
2 tan5 / 2 x c 5
2 tan5 / 2 x c (d) 5
None of these
dx
1 cosx sinx (a) (c)
18.
2 2 4 tanx 1 ,B , f(x) 5 5 5
2 2 A ,B , f(x) 5 5 15
(c) 17.
1 2 4 tanx 3 ,B , f(x) 5 5 15 15
(b) log| 1 cotx / 2| c (d) log| 1 cotx / 2| c
3x 9x 1
dx
log| 1 tanx / 2| c log| 1 tanx / 2| c
1 log| 3x 9x 1 | c log3
(a) 1
(b) log3 log| 9x
9x 1| c 1 log| 3x log9
(c) 1
(d) log9 log| 3x 19.
20.
ex dx
a bex
22.
9x 1 | c
(a)
2 / b a bex c
(b)
2b a bex c
(c)
1 a bex 2b
(d)
a a bex c b
(b)
2
u
d2v dx dx2
(a) 21.
v
d2u dx dx2 dv du u v c dx dx
uv c (c) (d) If f(x) g(x) , then the value of
c f '(x) . g(x) dx
f(x) 2 c
(b)
g(x) 2 c
(c)
1 f(x) 2 c 2
(d)
1 g(x) 2 c 2
1 2x e cot2x c 2
(b)
is
sin4 x 2 dx 1 cos4x
e 2x
1 2x e cot2x c 2
2e2x cot2x c (d) 2e2x cot2x c (c) The value of e (2 sin3x 3 cos3x) dx is e2x sin3x e2x cos3x (a) (b) e2x (d) e (2 sin3x) (c) 2x
2x
24.
du dv c dx dx
(a)
(a) 23.
9x 1| c
1 x2
log(x 2 a2 )dx 1 2 x log(x 2 a2 ) tan1 c x a a
(a) 1
2
x
(b) x log(x 2 a2 ) a tan1 a c
(c)
1 2 x log(x 2 a2 ) tan1 c x a a
(d)None of these 25.
26.
x2 1 x4 x2 1
dx
is equal to
(a)
log(x 4 x 2 1) c
(b)
1 x2 x 1 log 2 c 2 x x1
(c)
1 x2 x 1 log 2 c 2 x x1
(d)
log
x4 (x 1)(x 2 1)
dx
x(x 2) log(x 1) log(x 2 1) tan1 x c 2 2 4 2
(a) (b)
x2 x 1 c x x1
x(x 2) log(x 1) log(x 2 1) tan1 x c 2 2 4 2 x(x 2) log(x 1) log(x 2 1) tan1 x c 2 2 4 2
(c)
(d)None of these 27.
x3 1 x3 x
dx
(a)
x logx
1 log(x 2 1) tan1 x c 2
(b) x logx log x 1 tan x c x logx log x (c) (d)None of these 1
2
28.
For
x 1,
1
4
x(x 1)
(a)
log
(b) 14 log x
4
1
x
4
x4 1 x4
K
K
(c) (d)
dx
log 1 x4 1 log K 4 x
x4 1 K x
2
1 tan1 x c
29.
2x2 3
x 1
If (x2 1) (x2 4) dx a log x 1 are (a) (1, –1) (b)(–1, 1) 1 1 , 2 2
(c) 1 1 , 2 2
(d)
b tan1
x c, 2
then values of a and b