Tamil Nadu Board - Class 6

Core Math Concepts question bank (Mathematics)

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Q1.

Algebraic Identities: What is the expanded algebraic identity for 'Numbers (Whole Numbers, Estimation)'?

(A)

$(a+b)^3 = a^3 + 3a^2b + 3ab^2 + b^3$ or $a^3-b^3 = (a-b)(a^2+ab+b^2)$ (Numbers (Whole Numbers, Estimation))

(B)

$a^3+b^3$ only

(C)

Cannot be factored

(D)

None of these

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Q2.

Pythagoras & Congruence: In a right-angled triangle, which relationship holds true for 'Numbers (Whole Numbers, Estimation)'?

(A)

$\text{Hypotenuse}^2 = \text{Base}^2 + \text{Perpendicular}^2$ (Numbers (Whole Numbers, Estimation))

(B)

Hypotenuse = Base + Height

(C)

Not applicable

(D)

None of these

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