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Deepak BoraNewbie

Asked: August 12, 2020In: CBSE

The perimeters of the two circular ends of a frustum of a cone are 48 cm and 36 cm. If the height of the frustum is 11 cm, then find its volume and curved surface area.

This is one of the important question from the cbse board exam point of view because in 2014 cbse board ...Read more

Deepak BoraNewbie

Asked: July 14, 2020In: CBSE, ICSE

Prove that : ( cos A–sin A+1)/( cos A +sin A–1) = cosec A + cot A, (using the identity cosec^2A = 1+cot2A).

Prove the following identities, where the angles involved are acute angles for which the expressions are defined. NCERT Maths Solutions class ...Read more

Deepak BoraNewbie

Asked: July 16, 2020In: CBSE, ICSE

Find the values of k for each of the following quadratic equations, so that they have two equal roots : kx (x – 2) + 6 = 0

ncert maths solution class 10 chapter 4, quadratic equations

Deepak BoraNewbie

Asked: July 14, 2020In: CBSE

Find the area of a rhombus if its vertices are (3, 0), (4, 5), (-1, 4) and (-2,-1) taken in order.

Find the Area of the Rhombus. Hint : Area = ½× d1× d2

Deepak BoraNewbie

Asked: July 19, 2020In: CBSE

If α and β are the zeroes of a polynomial such that α + β = -6 and αβ = 5, then find the polynomial.

POLYNOMIALS class 10 important question

Deepak BoraNewbie

Asked: July 14, 2020In: CBSE

Check whether -150 is a term of the A.P. 11, 8, 5, 2, …

use formula last term= a+(n-1)d, to check -150 is a term of the A.P. 11, 8, 5, 2, ….

Deepak BoraNewbie

Asked: August 9, 2020In: CBSE

A spherical ball of radius 3 cm is melted and recast into three spherical balls. The radii of two of these balls are 1.5 cm and 2 cm. Find the radius of the third ball.

In the given problem shape of the object is sphere to find answer of this question need to use sphere ...Read more

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The perimeters of the two circular ends of a frustum of a cone are 48 cm and 36 cm. If the height of the frustum is 11 cm, then find its volume and curved surface area.

Prove that : ( cos A–sin A+1)/( cos A +sin A–1) = cosec A + cot A, (using the identity cosec^2A = 1+cot2A).

Find the values of k for each of the following quadratic equations, so that they have two equal roots : kx (x – 2) + 6 = 0

Find the area of a rhombus if its vertices are (3, 0), (4, 5), (-1, 4) and (-2,-1) taken in order.

If α and β are the zeroes of a polynomial such that α + β = -6 and αβ = 5, then find the polynomial.

Check whether -150 is a term of the A.P. 11, 8, 5, 2, …

A spherical ball of radius 3 cm is melted and recast into three spherical balls. The radii of two of these balls are 1.5 cm and 2 cm. Find the radius of the third ball.