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Are the square roots of all positive integers irrational? If not ,give an example of the square root of a number that is a rational number

Posted by Adhikesh P.V 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Samiksha Nimje 4 years, 4 months ago

If numbers such as √4=2,√9=3 are considered, Then here,2and 3 are rational number.Thus,the square roots of allpositive integers are not irrational.

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What is ployunamia

Posted by Deepanshu Vadav 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 4 months ago

Polynomials are expressions with one or more terms with a non-zero coefficient. A polynomial can have more than one number of terms. In the polynomial, each expression in it is called a term. Suppose x² + 5x+2 is polynomial, then the expressions x², 5x, and 2 are the terms of the polynomial. Each term of the polynomial has a coefficient. For example, if 2x+1 is the polynomial, then the coefficient of x is 2.

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7. Evaluate: 238+ 237+ 236 239+ 238+ 237

Posted by Ashish Singh 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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If x = 1- 2 , find the value of ( x - 1 x )²

Posted by Ashish Singh 4 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Amy Purple 4 years, 4 months ago

={1-2-1(1-2)}² ={-2(1-2)}² =(-2+4)² =4+(-16)+16 =4 Therefore, the solution to this question is 4

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Supriya ✔️ 4 years, 4 months ago

x=1-2 x=-1 (x-1x)^2 ((-1)-1(-x))^2 (-1+1)^2 (0)^2 Answer : 0

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Find the value of a and b if 3+2√2/3-√3=a+b√2

Posted by Chandsi Bansal 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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Find the value of a and b if 3+2√2/3-√2=a+b√2

Posted by Chandsi Bansal 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Chandsi Bansal 4 years, 4 months ago

Find the value of a and b if 3+2√2/3-√2=a+b√2

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If a + b + c = 15 and a² + b² + c² = 83, find the value of a³ + b³ + c³ – 3abc.

Posted by Ashish Singh 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 4 months ago

a² + b² + c² = 83 ------(1)

a + b+ c = 15

On squaring both sides, we get

a² + b² + c² + 2( ab + bc + ca) = 225

=> 83 + 2 ( ab + bc + ca) = 225

=> 2 ( ab + bc + ca) = 142

=> ab + bc + ca = 71 --------(2)

Now,

a³ + b³ + c³- 3abc = ( a +b + c) (a² + b² + c² - ab - bc - ca)

= ( 15) [ 83 - (ab + bc + ca)]

= (15)(83-71)

= 15 × 12

= 180

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If a supplement of an angle is 3 times of its complement find angle

Posted by Abhishek Singh 4 years, 4 months ago

CBSE > Class 09 > Mathematics

3 answers

Abhishek Singh 3 years, 9 months ago

Let one angle be x Supplement of an angle is (180°-x) Complement of an angle is (90°- x) 180°- x = 90°- 3x 3x - x = 180° - 90° 2x = 90° x = 45

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Abhishek Singh 3 years, 10 months ago

Let one angle be x Supplement of an angle is (180°-x) Complement of an angle is (90°- x) 180°- x = 90°- 3x 3x - x = 180° - 90° 2x = 90° x = 45°

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Yash Dhyani 4 years, 4 months ago

Let one angle be x Supplement of an angle is (180°-x) Complement of an angle is (90°- x) 180°- x = 90°- 3x 3x - x = 180° - 90° 2x = 90° x = 45°

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2 under root 3 =1/5 4 under root 9 find the NUMBER line

Posted by Prachi Bhardwaj 4 years, 4 months ago

CBSE > Class 09 > Mathematics

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Draw the graph of y =-2

Posted by Siya Malhotra 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Siya Malhotra 4 years, 3 months ago

Y=-2 means that x=0 , so on graph locate the point A(0,-2) and this is the answer

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Algebraic ldentities mein

Posted by Arti Nag 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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what is the answer for multiply 6 root 2

Posted by Anoop Sathish Kumar 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Ayush Tiwari 4 years, 4 months ago

6x√2 =6√2 =√2x6^2 =√2x36 =√72

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Find the value of x to the power 4 and multiply 2 ki power 5 is equal to 2 ki power 3 (x

Posted by Ajay Gadhwal 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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P(x)=(x+1)(x-2),x=1,2

Posted by Atul Saini 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Yash Dhyani 4 years, 4 months ago

P(x) = (x+1) (x- 2) P(1)= (1+1) ( 1-2) = (2) (-1) = -2 P(2)= (2+1) (2-2) = (3) (0) = 0 ☝️ Answer

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Find the area of a triangle two sides of which are 8cm and 11cn and the parameter is 32 cm

Posted by Sampradha Khati 4 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Yash Dhyani 4 years, 4 months ago

Perimeter of Triangle= sum of all sides 32 cm = a+b+c 32 cm = 8 + 11 32 - ( 8+11 )= 13 cm

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Prakriti Bakshi 4 years, 4 months ago

43.8178

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Verify whether x = -2 is root of polynomial x² + 10x -10

Posted by Jasneet Kaur Chahal 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 4 months ago

x² + 10x -10

= (-2)² + 10 (-2) - 10

= 4 - 20 - 10

= 4 - 30

= - 26

Hence x = -2 is not root of polynomial x² + 10x -10

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What is euclid geomatry and the 7 aximos?

Posted by Devesh More 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Meghna Thapar 4 years, 4 months ago

Euclid was known as the “Father of Geometry.” In his book, The Elements, Euclid begins by stating his assumptions to help determine the method of solving a problem. These assumptions were known as the five axioms. An axiom is a statement that is accepted without proof. Euclid's postulates were : Postulate 1 : A straight line may be drawn from any one point to any other point. Postulate 2 :A terminated line can be produced indefinitely. Postulate 3 : A circle can be drawn with any centre and any radius. Postulate 4 : All right angles are equal to one another.

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Find four rational numbers between 3/7 and5/8

Posted by Tarahum Asim 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Karishma Ahuja 4 years, 4 months ago

3/7 and 5/8 LCM of 7 and 8 is 56 3/7=3*8/7*8=24/56 , 5/8=5*7/8*7=35/56 Four rational number are: 25/56,26/56,27/56,28/56

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Visualize3.756 on the number line successsive manglification

Posted by Saksham Goel 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Saksham Goel 4 years, 4 months ago

Answer

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X square - 22 X + 120

Posted by Adarsh Gupta 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 4 months ago

Given,

x²−22x+120

= x²−12x−10x+120

= x(x−12)−10(x−12)

= (x−12)(x−10)

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How to represent √17 on number line

Posted by Navdeep Kaur 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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Area of length

Posted by Rakhi Kumari 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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Find six rational numbers between 0 and 1

Posted by Charanjit Patil 4 years, 4 months ago

CBSE > Class 09 > Mathematics

2 answers

Karishma Ahuja 4 years, 4 months ago

0 and 1 0=0*7/1*7=0/7 , 1=1*7/1*7=7/7 Six rational number are: 1/7,2/7,3/7,4/7,5/7,6/7

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Lakshmi Bahoriya 4 years, 4 months ago

What is democracy?

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Write rhe decimal representation of rrot 2 to 3 places of decimals

Posted by Soma Jain 4 years, 4 months ago

CBSE > Class 09 > Mathematics

0 answers

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Find two irrational number between 2 and 3.

Posted by Jigyasha Kumari 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 4 months ago

To find an irrational number between two rational numbers, we find a number which is non-terminating non-recurring lying between them.
2.3415...., 2.1587...., 2.6548...., 2.5478..... are some of the irrational numbers between 2 and 3.

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Which of the follow ing is equal to 0

Posted by Brijesh Chand 4 years, 4 months ago

CBSE > Class 09 > Mathematics

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Find the volume of the cuboid whose sides are zeroes of polynomial x square- 6xsquare +11x-6

Posted by Wangdi Lepcha Lepcha 4 years, 4 months ago

CBSE > Class 09 > Mathematics

1 answers

Gaurav Seth 4 years, 4 months ago

The equation is x³ - 6x² + 11x - 6

Putting x =1
(1)^3 -6(1)^2+11(1)-6=0
one root is (x-1)
divide whole eqn by (x-1)
(x-1) | x^3 -6x^2 + 11x -6 | X^2 -5x +6
x^3 -x^2
=======
-5x^2 +11x-6
-5x^2+5x
========
6x-6
6x-6
=====
0
so eqn is x^2-5x+6=0
x^2-2x-3x+6=0
(x-2)(x-3)=0
so the roots are 1 ,2,3