Question # 1

Number of permutations of n distinct objects taken r(<n - 3) at a time which exclude 3(<n) particular objects is

Choose an answer

3! P(n, r - 3)

P(n, 3) P(n, r - 3)

P(r, r)P(n, r - 3)

P(n - 3, r)

Choose an answer

I quadrant

II quadrant

III quadrant

IV quadrant

60° = ______

Choose an answer

cos(3π/2 +θ) = _____;

Choose an answer

sinθ

cosθ

-sinθ

-cosθ

Choose an answer

2x + 3y > 4 is a linear inequality in

Choose an answer

one variable

two variables

three variables

none of these

Choose an answer

The5thand 13th terms of an A.P are 5 and-3 respectively The first term of the A.P is

Choose an answer

1

-15

9

2

If uv= Projuv then

Choose an answer

Uandvare parallel

vis a unit vector

Uis a unit vector

Both b and c

In one hour the minute hand of a clock turns through

Choose an answer

The roots of ax2 + bx + c = 0 are always unequal if

Choose an answer

b2 - 4ac = 0

b2- 4ac ≠ 0

b2- 4ac > 0

b2- 4ac ≥ 0

The zero vector is

Choose an answer

[0, 0, 0]

[1, 1, 1]

[0, 1, 0]

[0, 0, 1]

Total number of subsets that can be formed out of the set {a,b,c} is

Choose an answer

1

4

8

12

The parabola y²= x is symmetric about

Choose an answer

x-axis

y-axis

Both x and y-axis

The line y = x

The condition for polynomial equation ax²+ bx + c = 0 to be quadratic is

Choose an answer

I is not

Choose an answer

Real number

Natural number

Prime Number

Whole Number

Choose an answer

15

9

7

8

5x³+ 3x - is a ______

Choose an answer

Polynomial of degree 3

Polynomial of degree 2

Polynomial of degree 1

Polynomial of degree 0

If n(A) = n then n(P(A)) is

Choose an answer

2n

n²

n/2

2ⁿ

Choose an answer

A vertical pole is 8m high and the length of its shadow is 6m. The angle of elevation of the sun of the moment is

Choose an answer

57𝜊

-48𝜊

27𝜊

53𝜊

Choose an answer

The law of sines

The law of consines

The law of tangents

None of these

Choose an answer

The function discontinuous at x = 0 is (1) tan x (II) cot x (III) sec x (iv)cosec x)

Choose an answer

I & III

I & IV

II & IV

II & III

If 2 and 2 are x and y components of vector then its angle with x-axis is

Choose an answer

30°

45°

60°

90°

Choose an answer

0

Independent of a

Independent of b

Independent of c

Any recurring decimal represents a

Choose an answer

Irrational no

Integer

Rational no

None of these

Choose an answer

0

1

-2

10

More Classes

Other Links

ECAT Pre General Science Mathematics Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer