Question # 1

Range of tan x is ______

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[-1, -]

R

Negative real numbers

R - {x | - 1 < x < 1}

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The set (Z, +) forms a group

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Forms a group w.r.t addition

Forms a group w.r.t multiplication

Non commutative group w.r.t multiplication

Doesn't form a group

A dice is rolled. The probability that the dots on the top are greater than 4 is

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1/6

1/3

1/2

1

The radian measure of the central angle of an arc 50 m long on a circle of radius 25 m is

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3

2

1

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[0, 0, 0]

[1, 0, 0]

[0, 1, 0]

[0, 0, 1]

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Additive property in R

Multiplication property in R

Cancellation property in R

Distribution property in R

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Commutative property of addition

Closure property of addition

Additive inverse

Associative property w.r.t. to addition

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A rational number

An irrational number

An odd number

A prime number

n! > 2ⁿ-1 is true when

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n≤ 3

n≤ 6

n≥ 4

n≤ 6

The additive inverse of 1 is

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1

-1

0

Does not exist

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Which of the vectors have opposite direction?

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The multiplicative inverse of x such that x = 0 is

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-x

does not exist

1/x

0

If in the expansion of (1+x)ⁿ, co-efficients of 2nd, 3rd and 4th terms are in A.P., then x=

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4

5

6

7

120° degrees are equal to how many radians?

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√(-1b) =?

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b i

-i b

b2

i√b

f(x) = C is

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identity function

constant function

linear function

quadratic function

The physical quantity which can be specified by a number alongwith unit is called a

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scalar

vector

constant

none of these

The radius of the circle (x - 1)²+ (y + 3)²= 61 is

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8

4

64

None of these

A square matrix A = [aij] is upper triangular when

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cij = 0

bij = 0

aij = 0 for all i > j

dij = 0

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none of these

The perimeter of a sector of a central angle of measure 1 radian out off an are of length 35cm is

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35 cm

70 cm

140 cm

105 cm

There are n seats round a table numbered 1, 2, 3 .... n. The number of ways in which m person can take seats is

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ⁿP_m

ⁿC_mx (m - 1) !

^n-1P_m

None of these

The sum of the focal distance from any point on the ellipse 9x2 +16y2 =144 is

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32

16

18

8

The liner equation ax + by = c is called _________ of the inequality ax +by > c.

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Associated equation

Non-associated equation

disjoint equation

Feasible equation

cotθ= sin 2θifθ=

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If the roots of ax²+ b = 0 are real and distinct then

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ab > 0

a = 0

ab < 0

a > 0, b > 0

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