Question # 1

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

Choose an answer

1/6

1/3

1/2

1

Range of cos x is ______

Choose an answer

[-1, 1]

R

Negative real numbers

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

(-28,12) divides the join of A(-6,3) and B(5,-2) in ratio

Choose an answer

1:2

3:2

2:3

2:1

Choose an answer

none of these

A stationary point x is a relative exterma of y= f(x) is

Choose an answer

f′′ (x) > 0

f′′ (x) < 0

f′′ (x) ≠ 0

f′′(x) = 0

What is the conjugate of -7 -2i?

Choose an answer

-7 + 2i

7 + 2i

7 -2i

None of these

pth term of an H.P. is qr and qth term is pr then the rth term of the H.P. is

Choose an answer

pqr

1

pq

pqr²

The set { {a, b} } is

Choose an answer

Infinite set

Singleton set

Two points set

Empty set

The solution of differential equation:

Choose an answer

dy/dx+y/x = x²is :

4xy = x⁴+ c

4x = x⁴= c

4 y = x⁴+ c

4x=4x³ + c

Choose an answer

If |a x b|2 + (a,b)2 = _____

Choose an answer

|a|2 + |b|2

|a|2- |b|2

|a|2|b|2

None

Choose an answer

If f(x) = x²-x then f(1) is

Choose an answer

0

1

2

3

The conjugate of √5 i is

Choose an answer

√5

-√5 i

i

5i

The last term of (1+2x)-2

Choose an answer

(-1)-2 (2x)-2

(-1)-4(-2x)-2

(-1)-3(2x)-3

Does not exist

If Z = (1,2), then Z^-1= ?

Choose an answer

(0.2, 0.4)

(-0.2, 0.4)

(0.2, -0.4)

(-0.2, -0.4)

The range of function f(x)=-x2+2x-1 is

Choose an answer

R

(-∞,0]

(-∞,1]

[0,∞)

The angle of depression of a point situated at a distance of 70 meters from the base of a tower is 45°. The height of the tower is

Choose an answer

70 m

85 m

35 m

None of these

Sum of two quantities is at least 20 is denoted by

Choose an answer

x +y =20

x +y≥ 20

x +y≠ 20

x +y≤20

If A is a non singular matrix then A^-1= ______

Choose an answer

Find the sum of the infinite geometric series 2 + 1 + 0.5 + ....

Choose an answer

3.5

3

4

None of these

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

Choose an answer

The function f : x→ y defined as f (x) =α∀x∈ X,α∈ y is called

Choose an answer

Constant function

Polynomial function

Identity function

Linear function

Period of cos 2x is ______

Choose an answer

If x = 1/x for x ∈ R then the value of x is

Choose an answer

±1

0

2

4

The positive value of k for which the equation x2 + kx + 64 = 0 has one of the roots 0

Choose an answer

4

64

8

All values of k

No term of a geometric sequence can be

Choose an answer

0

1

2

3

The identity elements with respect to subtraction is

Choose an answer

0

1

-1

Does not exist

The solution of the equation 3 tan²x = 1 is ____________

Choose an answer

none of these

More Classes

Other Links

ECAT 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

Choose an answer