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Show that. `(a – b) (a + b) + (b – c) (b + c) + (c – a) (c + a) =

asked Jan 17, 2022 in 8th-maths by purvi (1.8k points)

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Using `a^2 – b^2 = (a + b) (a – b)`, find `51^2 –

asked Jan 17, 2022 in 8th-maths by krutika (1.7k points)

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Using `a^2 – b^2 = (a + b) (a – b)`, find `153^2 –

asked Jan 17, 2022 in 8th-maths by nishit (1.8k points)

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Using `(x + a) (x + b) = x^2 + (a + b) x + ab`, find `9.7 xx

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

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For each of the given solid, the three views are given. Identify for each solid the corresponding top, front and side views.

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Can a polyhedron have for its faces 4

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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A cuboid is of dimensions 60 cm × 54 cm × 30 cm. How many small cubes with side 6 cm can be placed in the given

asked Jan 17, 2022 in 8th-maths by yogita (1.8k points)

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Express `4^(– 3)` as a power with the base

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

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Simplify and express the result in power notation with positive exponent.

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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Find the value of. `(3° + 4^(– 1)) xx

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Find the value of.

asked Jan 17, 2022 in 8th-maths by sumit (1.6k points)

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Evaluate `(5^(–1) xx 2^(–1)) xx

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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Simplify. `(25xxt^(-4))/(5^(-3)xx10xxt^(-8))

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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Rehman is making a wheel using spokes. He wants to fix equal spokes in such a way that the angles between any pair of consecutive spokes are equal. Help him bycompleting the following table. sss 8 → 45°, 10 → 36°, 12 → 30° sss Are the number of

asked Jan 17, 2022 in 8th-maths by Simran (1.8k points)

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A polyhedron has 60 edges and 40 vertices. Find the number of its

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Use isometric dot paper to draw each figure. (a) A tetrahedron. (b) A rectangular prism with length 4 units, width 2 units and height 2

asked Jan 17, 2022 in 8th-maths by nikhil (1.8k points)

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In a town, an ice cream parlour has displayed an ice cream sculpture of height 360 cm. The parlour claims that these ice creams and the sculpture are in the scale 1:30. What is the height of the ice creams

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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Coefficient of y in the term `3/(−y)`

asked Jan 17, 2022 in 8th-maths by Arun (1.7k points)

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Add: `5x^2 – 3xy + 4y^2 – 9, 7y^2 + 5xy – 2x^2 +

asked Jan 17, 2022 in 8th-maths by uday (1.6k points)

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Factorise the following, using the identity `a^2 + 2ab + b^2 = (a + b)^2` `x^2 + 14x +

asked Jan 17, 2022 in 8th-maths by vaibhav (1.7k points)

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