Question # 1

A∪(A∪B)= --------------------

Choose an answer

B

A

A∪B

None of these

i =

Choose an answer

√1

√2

√-2

√-1

Tan^-11/x = ______

Choose an answer

sin x

sec^-1X

cot^-1X

None of these

Choose an answer

Commutative law of addition

Associative law of addition

Additive identity

Additive inverse

The value of x for which the polynomials x2 - 1 and x2 -2x + 1 vanish simultaneously is

Choose an answer

2

1

-1

-2

If a cone is cut by a plane perpendicular to the axis of the cone, then the section is a

Choose an answer

Parabola

Circle

Hyperbola

Ellipse

If D = {a} , the P(D) =

Choose an answer

{a}

∅

{∅,{a}}

{∅,a}

In one hour, the hour hand of a clock turns through

Choose an answer

In an A.P,a +(n-a)d is

Choose an answer

1st term

General term

Last term

None of these

(a+bi) - (c+di)=

Choose an answer

(a+b) = (c+d)

(a+c) + i(b+d)

(a - c) + (c- d)i

(a - c)+ (b - d)i

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

Choose an answer

ⁿP_m

ⁿC_mx (m - 1) !

^n-1P_m

None of these

Choose an answer

image

pre-image

constant

none of these

The set {0,-1} hold closure property under

Choose an answer

Addition

Both a & c

Multiplication

None of these

How many 6-Digit number can be formed without repairing any digit from the digits 0,1,2,3,4,5

Choose an answer

720

600

120

6-5!

i²=

Choose an answer

1

2

-1

0

Choose an answer

-2x³

2x^-3

-2x^-3

2x³

Number of lines passing through three non-collinear points is

Choose an answer

2

3

1

0

∞

A circle which touches one side of a triangle extermally and the other two sides produced is called

Choose an answer

In-circle

Circumcircle

e-circle

Point circle

Choose an answer

What is the value of cos (cos-1 2) ?

Choose an answer

√2

1/2

undefine

0

Two circles x2 +y2 +8x -9= 0 and x2+y2+6y +k =0 touchinternallyif the value of k is

Choose an answer

k = 9

k = ±9

k=-9

k=11

Choose an answer

range of f

domain of f

both (a) and (b)

none of these

Choose an answer

Evert element of A is in B

Every element of B is in A

Every element of A is in B'

Every element of A is in A

Choose an answer

1

0

-1

2

The root of the quadratic equation are

Choose an answer

3

2

1

4

Choose an answer

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

Choose an answer

0

1

2

3

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