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Verify whether the following are zeroes of the polynomial, indicated against them. P(x)=2x+1,x=1/2.

Posted by Sukriti Pandey 4 years, 8 months ago

1 answers

P(x) = 2x + 1=> (i). x=1-> p(x) = 2(1) +1 -> 2+1=3...no x=1 is not the 0 of P(x). (ii). x=2 -> p(x) = 2x +1 -> 2(2) + 1= 4+1=5... no x=2 is not the 0 of P(x).

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P(x)=3x ke power 2 -1,x=-1/√3,2/√3 verify whether the following are zeroes of the polynomial,indicated against them.

Posted by Sukriti Pandey 4 years, 8 months ago

CBSE > Class 09 > Mathematics

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The distance of (-24,7) from origin is

Posted by Prathamesh Kharade 4 years, 8 months ago

CBSE > Class 09 > Mathematics

1 answers

Harshit Dhote 4 years, 3 months ago

7 units is the distance from origin.

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In triangle KMN, PQ is parallel to MN. If KP/KM = 4/13 and KN = 20.4 cm. Find KQ

Posted by Prathamesh Kharade 4 years, 8 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 4 years, 8 months ago

In Triangle KMN, We have

PQ // MN

Therefore, KP/PM = KQ/QN

KP/PM = KQ/KN-KQ

4/13 = KQ / 20.4 - KQ

4(20.4 - KQ ) = 13 KQ

81.6 - 4KQ = 13 KQ

17 KQ = 81.6

KQ = 81.6/17

⇒ 4.8 cm.

Hence, the value of KQ = 4.8 cm.

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The distance of (-2,-3) from y-axis is

Posted by Prathamesh Kharade 4 years, 8 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 4 years, 8 months ago

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The distance of (-2,-3) from x-axis is

Posted by Prathamesh Kharade 4 years, 8 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 4 years, 8 months ago

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Find the distance between the point (7,8) and (-2,3)

Posted by Prathamesh Kharade 4 years, 8 months ago

CBSE > Class 09 > Mathematics

1 answers

Sia ? 4 years, 8 months ago

Given as :
The points are , = 7 , 8
And , = - 2 , 3
Let The distance between these points = D unit

∵ Distance =

Or, D =

Or, D = unit

Or The distance between these points = D = unit

Hence, The distance between these points is unit .

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If the distances of P (x,y) from A (5,1) and B (-1,5) are equal, prove that 3x=2y.

Posted by Prathamesh Kharade 4 years, 8 months ago

CBSE > Class 09 > Mathematics

0 answers

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Find a point on the x-axis which is equidistant from (2,-5) and (-2,9).

Posted by Prathamesh Kharade 4 years, 8 months ago

CBSE > Class 09 > Mathematics

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Find three rational number lying between 3/5 and 7/8

Posted by Sanjana Kumari 4 years, 8 months ago

CBSE > Class 09 > Mathematics

1 answers

Ashutosh Mishra 4 years, 8 months ago

First equal the denominator of the both LCM OF 5 AND 8 = 40 3/5 × 8/8 = 24/40 7/8 × 5/5 = 35/40 Now, the denominator of both are equal ... Now, we get rational no.s between 24/40 and 35/40 The rationals are : 25/40, 26/40, 27/40, 28/40, 29/40, 30/40, 31/40, 32/40, 33/40, 34/40... U take any three rational no. between them... Thankx.... Have a nice day!!! ?

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Each exterior angle=(n-2) 180• upon ---------n

Posted by Neeraj Rawat 4 years, 8 months ago

CBSE > Class 09 > Mathematics

0 answers

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Find simplest rationalizing factor of (0) √2+√3+√7

Posted by Ekakshra Mahajan 4 years, 8 months ago

CBSE > Class 09 > Mathematics

0 answers

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.8.7+.43 in farm p/q.

Posted by Poonam Rani 4 years, 8 months ago

CBSE > Class 09 > Mathematics

0 answers

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Represent the √7 on a number line

Posted by Dev_Student Student 4 years, 8 months ago

CBSE > Class 09 > Mathematics

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Prove that : x^a(b-c)÷x^b( a-c)

Posted by 30 : Nidhi . 4 years, 8 months ago

CBSE > Class 09 > Mathematics

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Is √2/7 irrational or rational

Posted by Pbg 9A 4 years, 8 months ago

CBSE > Class 09 > Mathematics

3 answers

Nidhi Deshwal 4 years, 8 months ago

irrational

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Miheer Nikam 4 years, 8 months ago

Irrational

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Sia ? 4 years, 8 months ago

Let us assume that 2/√7 is rational number.
2/√7= 2/√7 × (√7/√7)= 2√7/7. ( Rationalising)
Now, 2√7/7 = p/q ( as rational no. can be written in the form of p/q)
2√7= 7p/q
√7= 7p/2q
Here LHS is irrational but RHS is rational.
This contradicts the statement.
Our assumption is wrong.
2/ √7 is an irrational number.

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