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Yogita Ingle 6 years, 6 months ago

999² = (1000 - 1)²
Using identity, (a - b) ² = a²+ b² -2ab
(1000 - 1)² =(1000)² + (1)² - 2(1000×1)
= 1000000 + 1 - 2000
= 1000001 - 2000
= 998001

ANSWER

15÷√10+√20+√40-√5-√80,if√5=2.236and√10=3.162

Posted by Vanshika Singh 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find the square root of14+6√5

Posted by Vanshika Singh 6 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Sameeksha V H 6 years, 6 months ago

X=a+- root a^2-b /2 14 + root 180 a^2-b = 14^2 - 180 = 16 Root 16 is 4 14+4/2, 14-4/2 9,5 Square root =root 9+ root 5 =3+root 5

ANSWER

Rs aggarwal EXERCISE 1F .qustion no 2 to 25 all

Posted by Priyanka Rawani 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

A car moves with a speed of 30 km / h -1 for half an hour , 25 km / h -1 for half an hour and 40 km / h - 1 for two hours. Calculate the average speed of a car.

Posted by Tiya Mavi 6 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Tiya Mavi 6 years, 6 months ago

Srry this question is for physics

ANSWER

Visualize 2.325 1.112 through sussive magnificate

Posted by S Abdul Hakeem Hakeem 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Why is 0! = 1 ?

Posted by Tishya Jha 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find a rational number between 2 by 9 and 3 by 8 and arrange in descending order

Posted by Kumar Kumar 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

root (x)whole to the power -2/3 * root y to the power 4 divided by root(xy)to the power -1/2

Posted by Soumyashree Shika 6 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Tishya Jha 6 years, 6 months ago

Dear Friend, The answer should be (x)^2/3*(y)^3

ANSWER

Class cbse exercise 6.3 question number 16

Posted by Varun Garg 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Classify the following as rational and irrational = 1) underroot 169

Posted by Harpreet Kaur Kaur Dhiman 6 years, 6 months ago

CBSE > Class 09 > Mathematics

3 answers

Tishya Jha 6 years, 6 months ago

√169= 13, thus a rational no.

Rudrani Kumari 6 years, 6 months ago

1√169 =1*13 =13 It is rational

Harpreet Kaur Kaur Dhiman 6 years, 6 months ago

Rational

ANSWER

W what is triangle

Posted by Pushpendra Singh Singh 6 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Swagatika Mohapatra 6 years, 6 months ago

Triangle is a closed figure which is made up of 3 sides, it have 3sides, 3angles, and 3 vertices

ANSWER

write down five irrational number between 5&6

Posted by Sampat Mamnani 6 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Adarsh Dwivedi 6 years, 6 months ago

5.1/5 ,5.2/5 ,5.3/5 ,5.4/5 ,5.5/5

ANSWER

Bisectors of the exterior angles at B and C formed by producing side AB and AC of a ∆ABC intersect each other at the point O. Prove that angle BOC= 90° - angleBAC

Posted by Naman Kashyap 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Express 3/4/5 in decimal form and state the kind of decimal expansion

Posted by Sarvesh Sarvesh 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

If X³+aX²+bx+6 is divisibleny x-2 and leaves remainder 3 wjen divided by x-3 , find a and b

Posted by Kaustav Beriwal 6 years, 6 months ago

CBSE > Class 09 > Mathematics

2 answers

Kaustav Beriwal 6 years, 3 months ago

Behn ke ,,,,,,,,,,,,,,

Prince Raj 6 years, 6 months ago

ANSWER

Find the values of a and b in the following √3-1/√3+1= a+b√3

Posted by Charan Singh 6 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 6 years, 6 months ago

ANSWER

If x+y=w+z, then prove that AOB is a line

Posted by Mayank Sharma 6 years, 6 months ago

CBSE > Class 09 > Mathematics

2 answers

Shambhavi Srivastav 6 years, 6 months ago

x+y =w+z ( given) W+Z)(w+z)=360 2(w+z)=360 w+z=180 This proves that AOB is a line

Shambhavi Srivastav 6 years, 6 months ago

x+y=w+z (given) (w+z)(w+z)=180 2(w+z)=180 (W+z)=90 This proves that AoB is a line

ANSWER

Simplify 1 by square root of 2 - square root of 3 minus 1 by square root 3 minus root 5

Posted by Varshath J 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Simplify 1 by square root 2 minus root 3 minus 1 by square root 3 minus root 5

Posted by Varshath J 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

x^3-2^2-x+2

Posted by Nidhi Verma 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Simplify 8/root18-7root3

Posted by Parmod Kumar 6 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Lakshya Khandelwal 6 years, 6 months ago

ANSWER

How to do a spiral

Posted by Siddhant Thakur 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find p(0) p(1) and p(2) for the polynomial: 2+t+2tsquare -tcube

Posted by Rashmi Sukla Baidya 6 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Navin Sah 6 years, 6 months ago

P(0) 2+t+2tsquare-tcube 2+0+(2*0)square - 0cube 2+0-0 2-0 2

ANSWER

Number system exercise_1.3

Posted by Lenin Yazhini 6 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Aman Kumar 6 years, 6 months ago

Guyu

ANSWER

Represent√9.3 on number line

Posted by Ritabrata Shadow 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

If x+1/×=1 than find the value of 2/x^2+x+2

Posted by Prerna Saini 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Represent root7on a number line by spried methode

Posted by Khushi Relwani 6 years, 6 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Find four different solution s of the equation x+2y = 6

Posted by Rahul Kumar 6 years, 6 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 6 years, 6 months ago

(2, 2), (0, 3), (6, 0) and (4, 1).