Tamil Nadu Board - Class 7

Intermediate Topics question bank (Mathematics)

Practice 371 free Tamil Nadu Board - Class 7 Mathematics - Intermediate Topics questions with answers and step-by-step solutions.

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Q1.

Algebraic Identities: What is the expanded algebraic identity for 'Number System (Integers - Addition, Subtraction, Multiplication)'?


(A)
$(a+b)^3 = a^3 + 3a^2b + 3ab^2 + b^3$ or $a^3-b^3 = (a-b)(a^2+ab+b^2)$ (Number System (Integers - Addition, Subtraction, Multiplication))
(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 'Number System (Integers - Addition, Subtraction, Multiplication)'?


(A)
$\text{Hypotenuse}^2 = \text{Base}^2 + \text{Perpendicular}^2$ (Number System (Integers - Addition, Subtraction, Multiplication))
(B)
Hypotenuse = Base + Height
(C)
Not applicable
(D)
None of these
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