English Medium इयत्ता ९ - CBSE Question Bank Solutions for Mathematics

The factors of x² + 4y² + 4y − 4xy − 2x − 8 are

The factors of x³ − 7x + 6 are

The expression x⁴ + 4 can be factorized as

If 3x = a + b + c, then the value of (x − a)³ + (x −b)³ + (x − c)³ − 3(x − a) (x − b) (x −c) is

If (x + y)³ − (x − y)³ − 6y(x² − y²) = ky², then k =

If x³ − 3x² + 3x − 7 = (x + 1) (ax² + bx + c), then a + b + c =

Write the coefficient of x² in the following:-

2 - x² + x³

Write the coefficient of x² in the following:-

`pi/2x^2+x`

Write the coefficient of x² in the following:-

`sqrt2x-1`

Write the degree of the following polynomial:-

4 - y²

Write the degree of the following polynomial:-

`5t - sqrt7`

Write the degree of the following polynomial:-

3

The exterior angles, obtained on producing the base of a triangle both way are 104° and 136°. Find all the angles of the triangle.

Compute the value of x in the following figure:

Compute the value of x in the following figure:

Compute the value of x in the following figure:

In the given figure, AC ⊥ CE and ∠A : ∠B : ∠C = 3 : 2 : 1, find the value of ∠ECD.

In the given figure, AB || DE. Find ∠ACD.

Is the following statement true and false :

Sum of the three angles of a triangle is 180 .

Is the following statement true and false :

A triangle can have two right angles.