# (www.entrance-exam.net)-1 ```TEST PAPER 1
Total Questions: 75
Time allotted 90 minutes
1.
The set of all integers x such that |x – 3| < 2 is equal to
(a) {1, 2, 3, 4, 5}
(b) {1, 2, 3, 4}
(c) {2, 3, 4}
(d) {-4, -3, -2}
2.
The Range of the function f(x) =
3.
x−2
is
2−x
(a) R
(c) (-1)
(b) R – {1}
(d) R – {-1}
The value of (i)i is
(a) ω
(c) e-π/2
(b) ω2
(d) 2√2
( cos θ + isin θ ) is equal to
5
( i cos θ + sin θ )
4
4.
(a) cos − isin θ
(c) sin θ − i cos θ
(b) cos9θ − isin 9θ
(d) sin 9θ − i cos9θ
5.
The roots of the quadratic equation ax 2 + bx + c = 0 will be reciprocal to each other if
(a) a = 1/c
(b) a = c
(c) b = ac
(d) a = b
6.
If α, β are the roots of ax 2 − 2bx + c = 0 then α3β3 + α 2β3 + α 3β2 is
c 2 ( c + 2b )
a3
2
c
(c) 3
a
(a)
(b)
bc3
a3
(d) None of these
7.
The sixth term of a HP is 1/61 and the 10th term is 1/105. The first term of the H.P. is
(a) 1/39
(b) 1/28
(c) 1/17
(d) 1/6
8.
Let Sn denote the sum of first n terms of an A.P.. If S2n = 3Sn, then the ratio S3n / 5n is equal to
(a) 4
(b) 6
(c) 8
(d) 10
9.
Solution of |3 – x| = x – 3 is
(a) x < 3
(b) x > 3
(c) x > 3
(d) x < 3
10.
If the product of n positive numbers in 1, then their sum is
(a) a positive integer
(b) divisible by n
(c) equal to n +
11.
1
n
(d) never less than n
A lady gives a dinner party to six quests. The number of ways in which they may be selected from
among ten friends, if two of the friends will not attend the party together is
(a) 112
(c) 164
12.
(b) 140
(d) None of these
For 1 ≤ r ≤ n, the value of nCr + n −1 Cr + n − 2 Cr + _ _ _ + r Cr is
(b) n +1 Cr
(d) None of them.
(a) nC r +1
(c) n +1 Cr +1
13.
2.42n +1 + 33n +1 is divisible by
(a) 2
(c) 11
14.
If Pn denotes the product of the binomial coefficients in the expansions of (1 + x)n, the
(a)
(c)
15.
(b) 9
(d) 27
n +!
n!
( n + 1)
(b)
nn
n!
(d)
( n + 1)
!
( n + 1)
n +1
n +1
n!
If x is very large and n is a negative integer or a proper fraction, then an approximate value of
⎛1+ x ⎞
⎜
⎟ is
⎝ x ⎠
x
(a) 1 +
n
1
(c) 1 +
x
n
16.
17.
18.
19.
20.
(b) 1 +
n
x
⎛
⎝
1⎞
(d) n ⎜1 + ⎟
x
⎠
If 4 log93 + 9 log24 = 10log x 83, (x ∈ R)
(a) 4
(b) 9
(c) 10
(d) None of these
2
The sum of the series log 24 − log82 + log16
_ _ _ _ to ∞ is
2
(b) loge2 + 1
(a) e
(c) loge3 – 2
(d) 1 – loge2
tan 5x tan 3x tan2x is equal to
sin 5x − sin 3x − sin 2x
cos5x − cos3x − cos 2x
(a) tan 5x − tan 3x − tan 2x
(b)
(c) 0
(d) None of these
If a = tan60 tan 420 and B = cot660 cot 780
1
3
(a) A = 2B
(b) A = B
(c) A = B
(d) 3A = 2B.
The value of cos
2π
4π
6π
is
+ cos
+ cos
7
7
7
(a) 1
(c) 1/2
21.
Pn +1
equals
Pn
(b) -1
(d) -1/2
1
7
If tan α = and sin β =
1
π
, where 0 < α, β < , then 2β is equal to
2
10
π
−α
4
π
(c) − α
8
3π
−α
4
3π π
(d)
−
8 2
(a)
(b)
22.
If sin θ + cos θ = 2 sin θ , then
(a) 2 cos θ
(b) − 2 sin θ
(c) − 2 cos θ
(d) None of these
23.
Value of
sin 2 200 + cos 4 200
is
sin 4 200 + cos 2 200
(a) 1
(c) ½
24.
(b) 2
(d) None of these
Value of 32cos6 200 − 48cos 4 200 + 18cos 2 200 − 1 is
(a) −1 2
(b) 1 2
(c)
3
2
(d) None of these
25.
If sin θ + cos ecθ = 2 , then value of sin 3 θ + cos ec3θ is
(a) 2
(b) 4
(c) 6
(d) 8
26.
If cos ecθ + cot θ = 5 2 , then the value of tanθ is
(a) 1516
(c) 15 21
27.
n
If length of the sides AB, BC and CA of a triangle are 8cm, 15 cm and 17 cm respectively, then
length of the angle bisector of ∠ABC is
120 2
cm
23
30
(c)
2cm
23
(a)
29.
3 sin x + cos x = 3 is given by
π π
(b) nπ + ( −1) +
4 3
π
π
n
(d) nπ + ( −1) −
3 6
General value of x satisfying the equation
π
(a) nπ ±
6
π
(c) nπ ±
3
28.
(b) 21 20
(d) 20 21
(b)
60 2
cm
23
(d) None of these
A man from the top of a 100 metre high tower sees a car moving towards the tower at an angle of
depression of 300. After sometimes, the angle of depression becomes 600. The distance (in metres)
traveled by the car during this time is
(a) 100 3
(c)
100 3
3
(b)
200 3
3
(d) 200 3
30.
(
)
The shadow of a tower of height 1 + 3 metre standing on the ground is found to be 2 metre
0
longer when the sun’s elevation is 30 , then when the sun’s elevation was
(a) 300
(b) 450
0
(c) 60
(d) 750
31.
32.
5π ⎞
⎛
cos −1 ⎜ cos ⎟ is equal to
4 ⎠
⎝
−π
(a)
4
(c) 3π 4
x
2
y
3
If cos −1 + cos −1 =
(a) 3 4
(c) 1 4
(b) π 4
(d) 5π 4
x2
xy y 2
π
, then value of
is
−
+
4 2 3 9
6
(b) 1 2
(d) None of these
33.
The distance between the lines 4x + 3y = 11 and 8x + 6y = 15 is
(a) 7/2
(b) 7/3
(c) 7/5
(d) 7/10
34.
The straight lines x + y – 4 = 0, 3x + y – 4 = 0, x + 3y – 4 = 0 form a traigle which is
(a) isosceles
(b) right angled
(c) equilateral
(d) None of these
35.
Incentre of the triangle whose vertices are (6, 0) (0, 6) and (7, 7) is
⎛9 9⎞
(a) ⎜ , ⎟
⎝2 2⎠
⎛ 11 11 ⎞
(c) ⎜ , ⎟
⎝2 2⎠
⎛7 7⎞
(b) ⎜ , ⎟
⎝2 2⎠
(d) None of these
36.
The area bounded by the curves y = |x| − 1 and y = − |x| + 1 is
(a) 1
(b) 2
(d) 4
(c) 2 2
37.
The coordinates of foot of the perpendicular drawn from the point (2, 4) on the line x + y = 1 are
⎛1 3⎞
(a) ⎜ , ⎟
⎝2 2⎠
⎛ 3 −1 ⎞
(c) ⎜ , ⎟
⎝2 2 ⎠
⎛ −1 3 ⎞
(b) ⎜ , ⎟
⎝ 2 2⎠
⎛ −1 −3 ⎞
(d) ⎜ , ⎟
⎝ 2 2 ⎠
38.
Three lines 3x + 4y + 6 = 0, 2x + 3y + 2 2 = 0 and 4x + 7y + 8 = 0 are
(a) Parallel
(b) Sides of a triangles
(c) Concurrent
(d) None of these
39.
Angle between the pair of straight lines x2 – xy – 6y2 – 2x + 11y – 3 = 0 is
(a) 450, 1350
(b) tan-1 2, π = tan-1 2
(c) tan-1 3, π = tan-1 3
(d) None of these
40.
If a circle passes through the point (a, b) and cuts the circle x2 + y2 = 4 orthogonally, then locus of
its centre is
(a) 2ax + 2by + ( a 2 + b 2 + 4 ) = 0
(b) 2ax + 2by − ( a 2 + b 2 + 4 ) = 0
(c) 2ax − 2by + ( a 2 + b 2 + 4 ) = 0
(d) 2ax − 2by − ( a 2 + b 2 + 4 ) = 0
41.
Centre of circle whose normals are x 2 − 2xy − 3x + 6y = 0 is
⎛ 3⎞
⎛
⎝
⎛3
⎞
⎛
⎝
−3 ⎞
⎟
2 ⎠
(b) ⎜ ,3 ⎟
⎝2 ⎠
(a) ⎜ 3, ⎟
⎝ 2⎠
3⎞
(c) ⎜ −3, ⎟
2
⎠
(d) ⎜ −3,
42.
Centre of a circle is (2, 3). If the line x + y = 1 touches, its equation is
(a) x 2 + y 2 − 4x − 6y + 4 = 0
(b) x 2 + y 2 − 4x − 6y + 5 = 0
(c) x 2 + y 2 − 4x − 6y − 5 = 0
(d) None of these
43.
The centre of a circle passing through the points (0, 0), (1, 0) and touching the circle x2 + y2 = 9 is
⎛3 1⎞
(a) ⎜ , ⎟
⎝2 2⎠
⎛1 1⎞
(c) ⎜ , ⎟
⎝2 2⎠
⎛1 3⎞
(b) ⎜ , ⎟
⎝2 2⎠
⎛1
1
⎞
(d) ⎜ , −2 2 ⎟
⎝2
⎠
44.
The line y = mx + 1 is a tangent to the parabola y2 = 4x if
(a) m = 1
(b) m = 2
(c) m = 3
(d) m = 4
45.
The angle between the tangents drawn from the origin to the parabola y2 = 4a (x – a) is
(a) 900
(b) 300
⎛1⎞
⎝ ⎠
(c) tan −1 ⎜ ⎟
2
(d) 450
46.
The area of the triangle formed by the tangent and the normal to the parabola y2 = 4ax, both drawn
at the same end of the latus rectum and the axis of the parabola is
(a) 2 2 a 2
(b) 2a 2
2
(c) 4a
(d) None of these
47.
The eccentricity of the eclipse 16x2 + 7y2 = 112 is
(a) 4/3
(b) 7/16
(d) 3/4
(c) 3/ 17
48.
A common tangent to the circle x2 + y2 = 16 and an ellipse
(a) y = x + 4 5
(c) y =
2
4 4
x+
11
11
(b) y = x + 53
(d) None of these
x 2 y2
+
= 1 is
49 4
49.
If the hyperbolas x 2 − y 2 = a 2 and xy = c 2 are of equal size, then
(b) c = 2a
(a) c 2 = 2a 2
2
2
(c) 2c = a
(d) none of these
50.
If a circle cuts rectangles hyperbola xy = 1 in the point (xi, yi), i = 1, 2, 3, 4 then
(b) y1y 2 y3 y 4 = 1
(a) x1x 2 x 3 x 4 = 0
(c) y1y 2 y3 y 4 = 0
(d) x1x 2 x 3x 4 = −1
51.
If 0 a b = 0 then
a
b 0
b 0 a
(a) a is a cube root of 1
(b) b is a cube root of 1
(c) a/b is a cube root of 1 (d) a/b is a cube roots of -1
52.
1 1 1
If + + = 0 , then
a b c
1+ a
1
1
(a) 0
(c) –abc
53.
(b) β
(D) Neither α nor β
⎡3 −4 ⎤
n
If A = ⎢
⎥ , the value of A
1
−
1
⎣
⎦
⎡3n −4n ⎤
n ⎥⎦
⎡3n
(c) ⎢
⎢⎣ 1
56.
⎡2 + n 5 − n ⎤
− n ⎥⎦
(b) ⎢
⎣ n
( −4 ) ⎤
⎥
n
( −1) ⎥⎦
n
(d) None of these
The domain of the function f ( x ) =
1
(a) ( −∞,1) ∪ ( 2, ∞ )
x 2 − 3x + 2
(b) ( −∞,1] ∪ [ 2, ∞ )
(c) [ −∞,1) ∪ ( 2, ∞ ]
(d) (1, 2)
Range of function
sin π ⎡⎣ x 2 + 1⎤⎦
is
x4 + 1
(
(a) 0
(c) [-1, 1]
57.
1+ b
1 is equal to
1 1+ c
cos ( α + β ) − sin ( α + β ) cos 2 B
The determinant
sin α
cos α
sin β is independent of
sin α
cos β
− cos α
(a) ⎢
⎣n
55.
1
(b) abc
(d) None of these
(a) α
(c) α and β
54.
1
lim
x →π
4
)
(b) {0}
(d) (0, 1)
1 − cot 3 x
is
2 − cot x − cot 3 x
(a) 11 4
(c) 1 2
(b) 3 4
(d) None of these
is
58.
⎛ sin x ⎞
limsec −1 ⎜
⎟=
x →0
⎝ x ⎠
(a) 1
(c) π 2
59.
(b) 0
(d) Does not exist
The function y = 3 x − x − 1 is continuous
(b) x > 1
(d) None of these
(a) x < 0
(c) no point
60.
⎛ 0, x is irrational is
⎝1,x is rational
The function f ( x ) = ⎜
(a) continuous at x = 1
(b) discontinuous only at 0
(c) discontinuous only at 0, 1
(d) discontinuous everywhere
61.
62.
Let f : R → R be a function defined by f(x) = max. {x, x3}. The set of all points where f(x) is not
differentiable is
(a) {-1, 1}
(b) {-1, 0}
(c) {0, 1}
(d) {-1, 0, 1}
⎧⎪ cos x ) 1 x , x ≠ 0 ⎫⎪
⎬ is continuous of x = 0 then value of k is
x = 0 ⎭⎪
⎩⎪K
If the function f ( x ) = ⎨(
(a) 1
(c) 0
63.
(b) -1
(d) e
1 + x5
∫ 1 + x dx =
(b) x −
(c) (1 + x ) + C
(d) None of these
5
64.
∫ x x dx
(a)
(c)
1
65.
∫
−1
x3
3
x2 x
2
x+2
x+2
π
(b)
x2 x
3
(d) None of these
dx =
(a) 1
(c) 0
66.
x 2 x3 x 4 x5
+
−
+
+x
2
3
4
5
(a) 1 − x + x 2 − x 3 + x 4 + c
(b) 2
(d) -1
2
∫ log ( tan x )dx
0
(a) π 4
(c) 0
(b) π 2
(d) 1
b
67.
If a < 0 < b, then
x
∫ x dx
a
(a) a – b
(c) a + b
(b) b – a
(d) –a – b
2
68.
∫x
2
x dx
0
(a) 5/3
(c) 8/3
π
69.
x sin x
∫ 1 + cos
0
70.
(b) 7/3
(d) 4/3
2
x
dx
2
(a) π 8
2
(b) π 4
3
(c) π 8
4
(d) π 8
The area bounded by curve y = 4x – x2 and x – axis is
30
sq. units.
7
32
(c)
sq. units.
3
(a)
31
sq. units.
7
34
(d)
sq. units.
3
(b)
71.
The area bounded by the curves y = |x| - 1 and y = -|x| + 1 is
(a) 1
(b) 2
(d) 4
(c) 2 2
72.
The area bounded by the curves y = x 4 − 2x 3 + x 2 − 3 , the x-axis and the two ordinates
corresponding to the points of minimum of this Function is
(a) 91/15
(b) 91/30
(c) 19/30
(d) None of these
3
73.
⎛ d2 y ⎞
4⎜ 2 ⎟
5
2
dx
⎛d y⎞
d3y
Degree of the differential equation ⎜ 2 ⎟ + ⎝ 3 ⎠ + 3 = x 2 − 1 , then
dy
dx
⎝ dx ⎠
3
dx
(a) m = 3, n = 3
(c) m = 3, n = 5
(b) m = 3, n = 2
(d) m = 3, n = 1
⎛ dy ⎞
2
dy
74.
A solution of the differential equation ⎜ ⎟ − x. + y = 0 is
dx
⎝ dx ⎠
(a) y = 2
(b) y = 2x
(d) y = 2x2 – 4
(c) 4y = x2 + c
75.
The area (in square units) of the parallelogram whose diagonals are a = ˆi + ˆj − 2kˆ and b = ˆi − 3jˆ + 4kˆ
r
(a) 14
(c) 2 6
(b) 2 14
(d) 38
r
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
(c)
(c)
(c)
(d)
(b)
(a)
(d)
(b)
(d)
(d)
(b)
(c)
(c)
(d)
(b)
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
(c)
(d)
(b)
(c)
(c)
(c)
(a)
(a)
(a)
(a)
(d)
(d)
(a)
(b)
(b)
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
(c)
(c)
(d)
(a)
(a)
(b)
(b)
(c)
(d)
(b)
(a)
(b)
(d)
(a)
(a)
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
(c)
(d)
(d)
(c)
(b)
(d)
(b)
(a)
(d)
(a)
(b)
(b)
(d)
(d)
(d)
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
71.
72.
73.
74.
75.
(d)
(a)
(b)
(b)
(b)
(c)
(c)
(c)
(a)
(c)
(b)
(b)
(d)
(c)
(a)
```