Quantitative Aptitude for Competitive Examinations>Chapter 28 - Elementary Algebra>Practice Problems Level 2>Q 63

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If $a b + b c + c a = 0$ , then the value of $\frac{1}{a^{2} - b c} + \frac{1}{b^{2} - a c} + \frac{1}{c^{2} - a b}$ :

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Important Questions on Elementary Algebra

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Quantitative Aptitude for Competitive Examinations>Chapter 28 - Elementary Algebra>Practice Problems Level 1>Q 1

If

- 2 x + 1

is a factor of

- 2 x^{2} - 3 x + 2

, then other factor is:

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IMPORTANT

Quantitative Aptitude for Competitive Examinations>Chapter 28 - Elementary Algebra>Practice Problems Level 1>Q 2

If

x - \frac{1}{x} = 5

, then is

x^{2} + \frac{1}{x^{2}}

:

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Quantitative Aptitude for Competitive Examinations>Chapter 28 - Elementary Algebra>Practice Problems Level 1>Q 3

If

p + q = 10

and

pq = 5

, then the numerical value of

\frac{p}{q °} + \frac{q}{p}

will be:

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Quantitative Aptitude for Competitive Examinations>Chapter 28 - Elementary Algebra>Practice Problems Level 1>Q 4

If

a + b = 12, ab = 22

, then

a^{2} + b^{2}

is equal to:

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Quantitative Aptitude for Competitive Examinations>Chapter 28 - Elementary Algebra>Practice Problems Level 1>Q 5

If

2 x + 3 y = 5

and

xy = \frac{1}{3}

then

8 x^{3} + 27 y^{3}

is:

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IMPORTANT

Quantitative Aptitude for Competitive Examinations>Chapter 28 - Elementary Algebra>Practice Problems Level 1>Q 6

If

a^{2} b^{2} - a^{2} - b^{2} + 1

is factorised in lowest degree, then the number of factors will be:

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Quantitative Aptitude for Competitive Examinations>Chapter 28 - Elementary Algebra>Practice Problems Level 1>Q 7

If

a + b = 20

and

a^{2} + b^{2} = 58

, then value of

a^{3} + b^{3}

is:

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IMPORTANT

Quantitative Aptitude for Competitive Examinations>Chapter 28 - Elementary Algebra>Practice Problems Level 1>Q 8

The value of

1 . 1^{3} - 0 . 3^{3} - 0 . 3^{3} - 0 . 8^{3}

in: