Question # 1

Choose an answer

15

9

7

8

The quadratic equation 8 sec²θ- 6 secθ+1 = 0 has

Choose an answer

Infinitely many roots

Exactly two roots

Exactly four roots

No roots

If 2x^1/3+ 2x^-1/3= 5, then x is equal to

Choose an answer

1 or -1

2 or 1/2

8 or 1/8

4 or 1/4

(x-1) is a factor of

Choose an answer

2x³-3x²+9

2x³-5x-8

48x^2-46x-9

x⁹-1

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

A quadratic equation in x is an equation that can be witten in the form

Choose an answer

ax²+ b = 0

ax³ +b²+c=0

ax² +bx+c=0

ax³ +bx³+cx=0

Choose an answer

If w is a cube root of unity then 1 + w + w²= ______

Choose an answer

1

2

0

-1

The equation (cos p - 1)x²+ x (cos p) + sin p = 0 in the variable x, has real roots, then p can take any value in the interval

Choose an answer

(0, 2π)

(-π, -0)

(0,π)

None of these

Roots of the equation x²+ 7x + 12 = 0 are

Choose an answer

{3, -4}

{-3, 4}

{3, 4}

{-3, -4}

If x³- x²+ 5x+ 4 is divided by x - 2, then the reminder is

Choose an answer

0

2

18

14

For the equation |x²| + |x| -6 =0, the roots are

Choose an answer

One and only one real number

Real with sum one

Real with sum zero

Real with product zero

w²⁸+ w³⁸= ______

Choose an answer

0

1

w

-1

The roots of px2 - (p-q)x-q=0 are

Choose an answer

equal

Irrational

Rational

Imaginary

Choose an answer

Lies between 4 and 7

Lies between 5 and 9

Has no value between 4 and 7

Has no value between 5 and 9

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

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

The two parts into which 57 should be divided so that their product is 782 are

Choose an answer

43,14

34,23

33,24

44,13

Only one of the root of ax2 + bx + c =0, a≠ 0 is zero if

Choose an answer

c = 0

c = 0,b≠ 0

b = 0,c = 0

b = 0,c≠ 0

Choose an answer

(-1, 2)

(-1, 1)

(1, 2)

{-1}

If one root of the equation ix²- 2(i + 1) x +(2 - i) = 0 is 2 - i, then the other root is

Choose an answer

-i

2 + i

i

2 - i

Two quadratic equation in which xy term is missing and the coefficients of x²and y²are equal, give a linear equation by ______

Choose an answer

Addition

Subtraction

Multiplication

Division

If a > 0,b > 0, c > 0 then the roots of the equation ax2+ bx + c =0 are

Choose an answer

Real and negative

Non-real with negative real parts

Real and positive

Nothing can be said

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

Choose an answer

2

1

-1

-2

Find a if 1 is a root of the equation x²+ ax + 2 = 0

Choose an answer

3

-3

2

0

The condition for ax2 + bx c to be expressed as the product of linear polynomials is

Choose an answer

b4 - 4ac =0

b4- 4ac ≥0

b4- 4ac <0

b4= 4ac

Choose an answer

b = c

a = c

b = 0

Ifα,β are non-real roots of ax2 + bx +c =0 (a,b,c∈ Q),then

Choose an answer

α = β

αβ = 1

α = β

α = 1

The minimum value of the quadratic function f(x) = x2 +6x -2, is

Choose an answer

11

6

-11

13

The roots of (b-c)x2+(c-a) x+a-b=0 are equal if

Choose an answer

2b = a+c

2a = b+c

2c = a+b

a + b + c =0

More Classes

Other Links

ECAT Pre General Science Mathematics Chapter 6 Quadratic Equations 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