Question # 1

If 0 = R, thenthe additive inverse of a is

Choose an answer

1/9

^1/-9

a

-a

What is the period of 6 sin x=?

Choose an answer

π

-π

π/2

2π

1st four terms of the expansion (1-x)^-2are

Choose an answer

1 + 2x + 3x²+ 4x³

3x²+ 2x + 1

1 + 3x + 4x²+ 5x³

None of these

The slope of x-axis is

Choose an answer

0

undefined

1

If 2 tan¹(cos x) = tan^-1(cosec²x), then x is equal to

Choose an answer

π/ 3

π/ 2

π/ 6

π

Choose an answer

if a_{9 =19,a9=31 are the 6th and 9th term of an A.P. and d=4 is the common difference, then 18th term of the sequence is}

Choose an answer

65

67

71

75

Which of the following is a vector.

Choose an answer

distance

temperature

energy

acceleration

Choose an answer

The set of complex numbers forms a group under the binary operation of

Choose an answer

Addition

none of these

Division

Subtraction

The set {{a,b}} is

Choose an answer

Infinite set

Singleton set

Two points set

None

The eccentricity of the parabola y²= -8x is

Choose an answer

-2

2

-1

1

Choose an answer

0

1

The angles of elevation of the top of a tower at the top and the foot of a pole of height 10 m are 30° and 60° respectively. The height of the tower is

Choose an answer

10 m

15 m

20 m

None of these

If a₁, r and a_nare the first term, common ratio and the nth term respectively of a G. P. then a_n=

Choose an answer

a₁rⁿ

a₁r^n-1

a₁rⁿ⁺¹

a₁r

If the equation x2+2x-3=0 and x2+3x-k=0 have a common root then the non - zero value of k is

Choose an answer

1

3

2

4

A class contains nine boys and three girls, in how many ways can the teacher choose a committee of four?

Choose an answer

460

495

272

60

One minute is denoted by

Choose an answer

1⁰

1'

1"

None of these

If a 1-1 correspondence can be established b/w two sets A and B, then they are called

Choose an answer

Equal sets

Equivalent sets

Over lapping sets

None of these

For any integer k, wⁿ= ______ when n = 3k

Choose an answer

1

2

0

-4

0 is a symbol of

Choose an answer

singleton set

Empty set

Equivalent set

Infinite set

ⁿC₂= exists when n is ______

Choose an answer

For Cosine Rule of any triangle ABC, b²is equal to

Choose an answer

a²- c²+ 2ab cos A

a³+ c³- 3ab cos A

a²+ c²- 2ac cos B

a²- c²4bc cos A

An equation which holds good for all values of variables is called

Choose an answer

Equation

Conditional equation

Constant

None

P∉ A means

Choose an answer

Pis subset of A

Pis an element of A

P does not belongs to A

A does not element of P

Choose an answer

A

B

U

None of these

The equation of the circle with centre (5, -2) and radius 4 is

Choose an answer

(x-5)²+ (y+2)²= 16

(x-5)²+ (y+2)²= 4

(x-5)²+ (y-2)²= 16

(x-5)²+ (y-2)²= 4

In R the right cancellation property w.r.t. addition is

Choose an answer

The number of subsets of a set having three elements is

Choose an answer

4

6

8

none of these

The equation of the normal to the circle x²+ y²= 25 at (4, 3) is

Choose an answer

3x - 4y =0

3x - 4y =5

4x + 3y = 5

4x + 3y = 25

More Classes

Other Links

Mathematics ECAT Pre Engineering 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