Mathematics Class 9>Chapter 4 - Algebraic Identities>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 12

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9th CBSE

IMPORTANT

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If the volume of a cuboid is $3 x^{2} - 27$ , then its possible dimensions are

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Important Questions on Algebraic Identities

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IMPORTANT

Mathematics Class 9>Chapter 4 - Algebraic Identities>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 13

75 \times 75 + 2 \times 75 \times 25 + 25 \times 25

is equal to

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Mathematics Class 9>Chapter 4 - Algebraic Identities>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 14

(x - y) (x + y) (x^{2} + y^{2}) (x^{4} + y^{4})

is equal to

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Mathematics Class 9>Chapter 4 - Algebraic Identities>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 15

If

x^{4} + \frac{1}{x^{4}} = 623

, then

x + \frac{1}{x} =

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IMPORTANT

Mathematics Class 9>Chapter 4 - Algebraic Identities>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 16

If

x^{4} + \frac{1}{x^{4}} = 194

, then

x^{3} + \frac{1}{x^{3}} =

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Mathematics Class 9>Chapter 4 - Algebraic Identities>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 17

If

x - \frac{1}{x} = \frac{15}{4}

, then

x + \frac{1}{x} =

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Mathematics Class 9>Chapter 4 - Algebraic Identities>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 18

If

3 x + \frac{2}{x} = 7

, then

(9 x^{2} - \frac{4}{x^{2}}) =

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IMPORTANT

Mathematics Class 9>Chapter 4 - Algebraic Identities>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 19

If

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

, then

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IMPORTANT

Mathematics Class 9>Chapter 4 - Algebraic Identities>MULTIPLE CHOICE QUESTIONS (MCQs)>Q 20

If

a + b + c = 0

, then

\frac{a^{2}}{b c} + \frac{b^{2}}{c a} + \frac{c^{2}}{a b} =