CBSE > Class 09 > Mathematics | CBSE Board | Homework Help

If the sum of the two angles lying at the transversal is 180° then the angles are co interior angles And the angles must be within the two given parallel lines

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x^2 + 10x + 25 using identity

Posted by Bhawesh Naik 6 years, 5 months ago

CBSE > Class 09 > Mathematics

3 answers

Rudra Jaggi 6 years, 5 months ago

It resembles identity 1

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Shirin Sobnam 6 years, 5 months ago

x^2 + 10x + 25 x^2 + 10x + 5^2 x^2 + 2*x*5 +5^2 (x + 5)^2

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Tanishka Kohli 6 years, 5 months ago

(x+5)^2

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find (ax^3 +bx^2-5x +2) has (x+2) as a factor and leaves a remainder 12 when divisible by(x-2) find a and b.

Posted by As Nazmin 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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Factorise a2+ab+ac+bc

Posted by Madhes Darani 6 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

Ranveer Srivastava 6 years, 5 months ago

(a^2 + ab ) + ( ac + bc ) Taking common factors =a(a + b)+c(a + b) ( a + c ) ( a + b ) I hope this will help you .

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Tanishka Kohli 6 years, 5 months ago

(a+b)(a+b)

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Ncert maths class 9 chapter 6 ex 6.2

Posted by Mayank Kumar Mishra 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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Find the measure of an angle of 4 times its complement is 10 degree than twice it's supplement

Posted by G.N. Shiraguppi 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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3/4

Posted by Hemant Singh 6 years, 5 months ago

CBSE > Class 09 > Mathematics

0 answers

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If 2 interior angels on the same side of transversal interseting 2 parallel lines are in the 2 ratio 3 than what is the measure of smaller angle

Posted by G.N. Shiraguppi 6 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

Ranjana Kumari 6 years, 5 months ago

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Hemant Singh 6 years, 5 months ago

Fvfs

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2 supplementary angles are in 2 ratio 3 find the angle

Posted by G.N. Shiraguppi 6 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

Rishita Gupta 6 years, 5 months ago

2x36=72° 3x36=108°

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Rishita Gupta 6 years, 5 months ago

2x+3x=180° 5x=180° x=180/5 x=36°

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An exterior angle of triangle is 110degeer and it's 2 opposite interior angle are equal what is the measure of each angle

Posted by G.N. Shiraguppi 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Tanishka Kohli 6 years, 5 months ago

55°

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What is the measure of an angel whose measure is 32degeer less than its supplement

Posted by G.N. Shiraguppi 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

74°

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How to factorise the polynomials with the power-3

Posted by Jayakumar Jayabhavan 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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F(c )=5x× 5x× 5x+ x ×x_ 5x 1, g(x) =x+1

Posted by Banny Sundrapalli 6 years, 5 months ago

CBSE > Class 09 > Mathematics

0 answers

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If the temperture is 30C what is the temperture in fahrenheit

Posted by Yash G 6 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

Tanishka Kohli 6 years, 5 months ago

86°F

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Bhawesh Naik 6 years, 5 months ago

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Find the mean and median of the first 10 natural number

Posted by Himanshu 4321 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 6 years, 5 months ago

first 10 natural number=1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 10 = 55
Mean = 55/10 = 5.5
now, 5th and 6th term as the total number is even .
Median = 5+6/2 = 11/ 2 = 5.5

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a12 x4 -a4 x12

Posted by Anirudha Agrawal 6 years, 5 months ago

CBSE > Class 09 > Mathematics

2 answers

Tanishka Kohli 6 years, 5 months ago

0 ans

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Akku Kumari 6 years, 5 months ago

a48×48

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Give to answer for these equations:1 x+y=4 2 x-y=2 3 y=3x 4 3=2x+y

Posted by Narasimha Raju Yadav 6 years, 5 months ago

CBSE > Class 09 > Mathematics

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Two medians AD and BC of triangle ABC intersect at o prove that point divides each median in the ratio 2 is to 3

Posted by Varad Bedekar 6 years, 5 months ago

CBSE > Class 09 > Mathematics

0 answers

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Find six rationale number between 3 and 4

Posted by Prince Jhala 6 years, 5 months ago

CBSE > Class 09 > Mathematics

3 answers

Tanishka Kohli 6 years, 5 months ago

3.1 ,3.2 ,3.3 ,3.4 ,3.5 ,3.6

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Kumkum Kumkum 6 years, 5 months ago

Same the denominator by 1 of both the numbers and then add 1 in the no . You want to find like 6+1 and multiply 7 with both the no. Like 3/1×7

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Vidya Vishwa1983 6 years, 5 months ago

7/2,11/3,23/6,12/3,25/6,13/6,27/6

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How many students appeared in 9th class maths test (ch 1&2)?

Posted by Roshni Kumari 6 years, 5 months ago

CBSE > Class 09 > Mathematics

3 answers

Santosh Sahu 6 years, 5 months ago

Ok i m

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Manoj Kumar 6 years, 5 months ago

No one

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Ayush Baranwal 6 years, 5 months ago

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If value of x+1/x is 3+√8 than find the value of x^2+1/x^2

Posted by Sneh Lata Kamal 6 years, 5 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 6 years, 5 months ago

It is given that,
x = 3 + {tex}\sqrt{8}{/tex}
Now, {tex}\frac{1}{x}{/tex} = {tex}\frac{1}{3+\sqrt{8}}{/tex} = {tex}\frac{1}{3+\sqrt{8}} \times \frac{3-\sqrt{8}}{3-\sqrt{8}}{/tex} ( rationalising the expression)
= {tex}\frac{3-\sqrt{8}}{(3)^{2}-(\sqrt{8})^{2}}{/tex}
= {tex}\frac{3-\sqrt{8}}{9-8}{/tex} = 3 - {tex}\sqrt{8}{/tex}
{tex}\Rightarrow{/tex} {tex}\frac{1}{x}{/tex} = 3 - {tex}\sqrt{8}{/tex}
We know that, (x + {tex}\frac{1}{x}{/tex})² = x² + {tex}\frac{1}{x^2}{/tex} + 2 {tex}\times{/tex} x {tex}\times{/tex} {tex}\frac{1}{x}{/tex}
{tex}\Rightarrow{/tex} (3 + {tex}\sqrt{8}{/tex} + 3 - {tex}\sqrt{8}{/tex})² = x² + {tex}\frac{1}{x^2}{/tex} + 2
{tex}\Rightarrow{/tex} (6)² = x² + {tex}\frac{1}{x^2}{/tex} + 2
{tex}\Rightarrow{/tex} 36 = x² + {tex}\frac{1}{x^2}{/tex} + 2
{tex}\Rightarrow{/tex} x² + {tex}\frac{1}{x^2}{/tex} = 36 - 2 = 34
Hence, x² + {tex}\frac{1}{x^2}{/tex} = 34