MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 1

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10th CBSE

IMPORTANT

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If the equation $x^{2} + 4 x + k = 0$ has real and distinct roots, then

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Important Questions on Quadratic Equations

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10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 2

If the equation

x^{2} - a x + 1 = 0

has two distinct roots, then

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IMPORTANT

MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 3

If the equation

9 x^{2} + 6 k x + 4 = 0

has equal roots, then both the roots are equal to

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MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 4

If

a x^{2} + b x + c = 0

has equal roots, then

c =

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10th CBSE

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MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 5

If the equation

a x^{2} + 2 x + a = 0

has two distinct roots, then

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10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 6

The positive value of $k$ for which both the equations $x^{2} + k x + 64 = 0$ and $x^{2} - 8 x + k = 0$ will have real roots is

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10th CBSE

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MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 7

The value of

\sqrt{6 + \sqrt{6 + \sqrt{6 + \sqrt{6 + . . . . . . . .}}}}

is

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MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 8

If

2

is a root of the equation

x^{2} + b x + 12 = 0

and the equation

x^{2} + b x + q = 0

has equal roots, then

q =

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10th CBSE

IMPORTANT

MATHEMATICS CLASS X>Chapter 4 - Quadratic Equations>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 9

If the roots of the equation

(a^{2} + b^{2}) x^{2} - 2 b (a + c) x + (b^{2} + c^{2}) = 0

are equal, then