Question # 1

The coefficient of xn in the expansion of (1-x)-1 is

Choose an answer

(-1)n2n

1

(-1)n(n+1)

(n+1)

Ifᵨ> 1 , then the conic, is:

Choose an answer

Ellipse

Parabola

Hyperbola

None of these

∫Sec² (ax + b) dx is equal to:

Choose an answer

tan² (ax + b)

1/a tan² (ax + b)

1/atan (ax +b)

tan (ax + b)

Let A is a 3 x 3 matrix and B is its adjoint matrix. If |B| = 64, then |A| =

Choose an answer

f (x) = | x | is a/an

Choose an answer

Injective function

Bijective function

Surjective function

Implicit function

If a > 0 they parabola y2 =-4ax lies in

Choose an answer

I and iv quadrant

I quadrant

II and III quadrant

All are incorrect

sec h x = ________

Choose an answer

The symbol of irrational is

Choose an answer

W

N

Q

Q'

Onto function is also called

Choose an answer

Binjective function

Injective function

Surjechive function

None of these

Choose an answer

0

1

The distance between the points (0 , 0) and (2, 1) is

Choose an answer

5

0

3

The point of concurrency of the medians of the ΔABC is called its

Choose an answer

Orthocenter

Centriod

Circumcentre

Incentre

The sum if 1,3,5,7,9........ up to 20 terms is

Choose an answer

400

472

563

264

The square matrix A is skew-symmetric when At=

Choose an answer

-B

-C

-A

-D

(0,0) is in the solution of the inequality

Choose an answer

x + y > 3

x - y > 2

3x + 2y > 5

3x - 2y < 2

In any triangle ABC,with usual notationαsinβ =____;

Choose an answer

b sinα

bsinβ

αsinα

None of these

If z₁= 2 + 6i and z₂= 3 + 7i, then which expression defines the product of z₁and z₂?

Choose an answer

36 + (-32)i

-36 + 32i

6 + (-11)1

0, +(-12)i

If x, y, z are the pth, qth, rth terms of an A.P. and also of G.P., then x^y-z. y^z-x. z^x-yeqals

Choose an answer

xyz

0

1

None of these

In natural logarithm the base is

Choose an answer

1

0

10

e

The 8th term of (1+2x) ^-1/2is

Choose an answer

-221/16 x⁷

-225/18 x⁷

-407/9 x³

-429/16 x⁷

If cos 20°=K and cos x=2 k²-1, then the possible values of x between 0° and 360° are

Choose an answer

140°

50° and 140°

50° and 130°

40° and 320°

Choose an answer

I

14 I

0

None of these

f(x) = 2x²+ 3x + 5 is a

Choose an answer

trigonometric function

algebraic function

exponential function

logarithmic function

In quadratic equation, if the replacement of y with -y leaves the equation unchanged, then the graph is

Choose an answer

Straight line

Circle

Hyperbola

Symmetric w.r.t.0

Choose an answer

0

1

-1

None

If a,β are the roots of ax2+bx+c=0,the equation whose roots are doubled is

Choose an answer

ay2 +2by+c=0

ay2+2by+4c=0

ay2+2by+c=0

ay2+by+4c=0

Choose an answer

none of these

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