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Two irrational number between 1/7 and 1/9

Posted by Ansh Mittal 4 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Nikhil Prajaapati 4 years, 2 months ago

Infinite rational number

Varun Tyagi 4 years, 2 months ago

What is Matter?

ANSWER

(a+b)^3-(a-b)^3

Posted by Laxmi Narayan Sahoo 4 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Yogita Ingle 4 years, 2 months ago

(a+b)³ - (a-b)³

= [ a³+ b³ +3a²b +3ab²] -[ a³- b³ -3a²b +3ab²]

= a³+ b³ +3a²b +3ab²- a³+ b³ +3a²b - 3ab²

⁼ b³ +3a²b + b³ +3a²b

= 2b³ +6a²b

Laxmi Narayan Sahoo 4 years, 2 months ago

a^3+b^3-a^3+b^3 =2b^3

ANSWER

x=root2-1 then find xsquare+1/xsquare

Posted by Anjali Singh 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Sunisha Flower Decoretion 4 years, 2 months ago

Given, x= √2-1 so, 1/x = 1/√2-1 (rationalise) =1/√2-1*√2+1/√2+1 =√2+1/((√2)^2-(1)^2 {(a+b)(a-b)=a^2-b^2} =√2+1/2-1 =√2+1/1 =√2+1 (1/x) Again, xsquare+1/xsquare= x^2+(1/x)^2 =(√2-1)^2 + (√2+1)^2 ={(√2)^2+(1)^2-2*√2*1} +{(√2)^2+(1)^2+2*√2*1} ={2+1-2√2}+{2+1+2√2} =3-2√2+3+2√2 =6+0 =6 Hence, xsquare+1/xsquare=6 Do you satisfied to my given answer????

ANSWER

Lines and angles chapter Ex :-4.2

Posted by Madhu Rima Roja 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Alok Gupta 4 years, 2 months ago

It is very easy ???

ANSWER

5+5+5+5+

Posted by Prince Poonia 4 years, 2 months ago

CBSE > Class 09 > Mathematics

4 answers

Satyam Chaubey 4 years, 2 months ago

5+5+5+5=20

Arjun B 4 years, 2 months ago

20

Srijal Verma 4 years, 2 months ago

5+5+5+5 =20

Agnes Jimmy 4 years, 2 months ago

20

ANSWER

Rationalise the denominator of 1/root5+root3

Posted by Kajal Dubey 4 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Sunisha Flower Decoretion 4 years, 2 months ago

1/√5+√3= 1/√5+√3×√5-√3/√5-√3 = √5-√3/(√5)^2-(√3)^2 {(a+b)(a-b)= (a)^2-(b)^2} =√5-√3/5-3 =√5-√3/2 ans... Do you satisfied to my given answer????

Shagun Nehra 4 years, 2 months ago

=1× root 5 - root 3/root 5 + root 3× root 5 - root 3 =Root 5 - root 3/ root 5 square - root 3 square =Root 5 - root 3 / 5 - 3 = Root 5 - root 3/2 Ans.

ANSWER

The number 1.010010001 is/an a. Natural number b. Whole number c. Rational number d. Irrational number

Posted by Arjun B 4 years, 2 months ago

CBSE > Class 09 > Mathematics

3 answers

Shagun Nehra 4 years, 2 months ago

Irrational no.

Trishla Jain 4 years, 2 months ago

Yes , irrational number

Aman Maurya 4 years, 2 months ago

Irrational number

ANSWER

To become engineer we can choose biology subject

Posted by Krish Achra? 4 years, 2 months ago

CBSE > Class 09 > Mathematics

3 answers

Shagun Nehra 4 years, 2 months ago

No

Saurav Anand 4 years, 2 months ago

No

Trishla Jain 4 years, 2 months ago

No

ANSWER

How to find irrational and rational number

Posted by Narsimha Prajval 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 2 months ago

Rational numbers : The rational numbers are numbers which can be expressed as a fraction and also as positive numbers, negative numbers and zero. It can be written as p/q, where q is not equal to zero.

Rational word is derived from the word ‘ratio’, which actually means a comparison of two or more values or integer numbers and is known as a fraction. In simple words, it is the ratio of two integers.

Example: 3/2 is a rational number. It means integer 3 is divided by another integer 2.

Irrational numbers: The numbers which are not a rational number are called irrational numbers. Now, let us elaborate, irrational numbers could be written in decimals but not in fractions which means it cannot be written as the ratio of two integers.

Irrational numbers have endless non-repeating digits after the decimal point. Below is the example of the irrational number:

Example: √8=2.828…

ANSWER

Find 64 1\2

Posted by Altaf Chakure 4 years, 2 months ago

CBSE > Class 09 > Mathematics

4 answers

Saurav Anand 4 years, 2 months ago

8

Dhanyatha S Maddodi 4 years, 2 months ago

8

Minakshi Mishra 4 years, 2 months ago

8

Sarita Panda 4 years, 2 months ago

64^½=8

ANSWER

if the depreciation of machinery and equipment in one year is Rs.8000 and the ratio of the amount of depreciation of machinery and equipment is 1:3, then the ratio of depreciation of equipment is 30% or other

Posted by Rink Baghe 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Gaurav Seth 4 years, 2 months ago

Rate of depreciation of equipment= 75%

Step-by-step explanation:

Given,Amount of depreciation of machine and equipment = Rs.8000

Ratio of amount of depreciation of machiney amd equipment = 1:3

Let ,Amount of depreciation of machinery =

= x

Amount of depreciation of equipment =

= 3x

Rate of depreciation of equipment =

=

=

= 75%

ANSWER

Trinomial of degree 6

Posted by Alisha Afroz 4 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Sunisha Flower Decoretion 4 years, 2 months ago

√5x⁶+3x+2 is a trinomial of degree 6

Ankush Garg 4 years, 2 months ago

√2x-1

ANSWER

In a class there are x girls and y boys , a student is selected at random ,then find the probability of selecting a boy?

Posted by Jagroop Singh Singh 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Gaurav Seth 4 years, 2 months ago

Q : In a class, there are x girls and y boys, a student is selected at random, then find the probability of selecting a boy.

A n s w e r :

Number of boys = y
Total students = (x + y)
Thus,P(a boy)= y/(x+y)

ANSWER

Which of the following is equal ' x'

Posted by Crazy Guru 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Hanshika (Honey) 4 years, 2 months ago

Incomplete question

ANSWER

AB and AC are opposite rays

Posted by Sheshasai Sheshasai 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Trishla Jain 4 years, 2 months ago

Incomplete question

ANSWER

36 degrees 27'46''+angle 28degree 43'39''

Posted by Vaibhav Tiwari 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Trishla Jain 4 years, 2 months ago

Answer= 64°70'85"

ANSWER

Factorise: (a – b)3 + (b – c)3 + (c – a)3

Posted by Nishad Shiriskar 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Vikash Singh 4 years, 2 months ago

2 (a-b-c)3

ANSWER

Is any one can prove that 1=2 ? ??

Posted by Divanjyoti Deka 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Nishad Shiriskar 4 years, 2 months ago

PROVE LHS=RHS 1+1=2+0 2=2 HENCE PROVED....

ANSWER

Identify the irrational no.(1) √7-√3. (2) 9.98 bar. (3) √169. (4) 6.056

Posted by Saurabh Nagar 4 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Sarita Panda 4 years, 2 months ago

√7-√3 is an irrational no.

Yogita Ingle 4 years, 2 months ago

(2) 9.98 bar.

Since 9.98 bar. is a non-terminating and recurring (repeating) decimal.

So, it is a rational number.

(3) 169 = 13 * 13 = 13²

So, 169 is a perfect square.

Thus, √169 is a rational number.

(4) 6.056

Since 6.056 is a terminating decimal,

So, it is a rational number.

ANSWER

Identify the irrational no. 1. √7 - √3 2. 9.98 bar 3. √169 4. 6.056

Posted by Saurabh Nagar 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Yogita Ingle 4 years, 2 months ago

(2) 9.98 bar.

Since 9.98 bar. is a non-terminating and recurring (repeating) decimal.

So, it is a rational number.

(3) 169 = 13 * 13 = 13²

So, 169 is a perfect square.

Thus, √169 is a rational number.

(4) 6.056

Since 6.056 is a terminating decimal,

So, it is a rational number.

ANSWER

Which exam we have to give to become engineer

Posted by Krish Achra? 4 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

#Kavya Goenka 4 years, 2 months ago

JEE

Adityabarno Basu 4 years, 2 months ago

JEE(Joint Entrance Examination)

ANSWER

Thickness of a paper is 0.08m write these numbers in standard form

Posted by Alisha Afroz 4 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Suzanne Smitha 4 years, 2 months ago

8.000 ×10-2

Hanshika (Honey) 4 years, 2 months ago

2/25m

ANSWER

3xsquare +10x+8

Posted by Reshmi Pillai 4 years, 2 months ago

CBSE > Class 09 > Mathematics

4 answers

Suzanne Smitha 4 years, 2 months ago

3x2 + 6x+ 4x + 8 = 3x ( x + 2) + 4 ( x+ 2) = (x + 2)(3x + 4)

Hanshika (Honey) 4 years, 2 months ago

The below answer is right ???

Yogita Ingle 4 years, 2 months ago

3x² + 10x + 8

= 3x² + 6x+ 4x + 8
= 3x ( x + 2) + 4 ( x+ 2)

= (x + 2)(3x + 4)

Hanshika (Honey) 4 years, 2 months ago

Should we have to factorise this or finding the zeros ??? What is ur question

ANSWER

If a transversal intersect two lines such that a pair of interior angles on the same side of the transversal is supplementary,the ln the lines are parallel.proof that the lines are parallel

Posted by Shraval Jr Háldàñkâr 4 years, 2 months ago

CBSE > Class 09 > Mathematics

0 answers

ANSWER

Three verticals of a rectangle ABCD are A(3,1), B(-3,1) and C(-3,3). Plot these points on a graph paper and find the coordinates of the fourth vertex D. Also find tha area of rectangle ABCD.

Posted by Sømyä Särewär 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Madhusmita Sahu 4 years, 2 months ago

I think D will be (3,3) Area =12unit sq.

ANSWER

Area of triangle is equals to

Posted by Sajal Yadav 4 years, 2 months ago

CBSE > Class 09 > Mathematics

4 answers

Aswath Gokul 4 years, 2 months ago

1/2×base ×height =Area of triangle

Madhusmita Sahu 4 years, 2 months ago

1/2×(b×h) Or Root of (s(s-a)(s-b)(s-c)) Where s=semi -perimete of triangle And a,b,c are the sides of the triangle

Suzanne Smitha 4 years, 2 months ago

Area of a Triangle = A = ½ (b × h)

Agnes Jimmy 4 years, 2 months ago

the area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle. Example: Find the area of the triangle. The area A of a triangle is given by the formula A=12bh where b is the base and h is the height of the triangle.

ANSWER

Find the value of 's' if the perimeter is 32cm

Posted by Freddy Mon 4 years, 2 months ago

CBSE > Class 09 > Mathematics

5 answers

Aswath Gokul 4 years, 2 months ago

Side of square = 8cm

Shree Kushwaha 4 years, 2 months ago

The perimeter of square =4 x side. 4 x side =32. Side =32/4. Side =8

Vaibhav Tiwari 4 years, 2 months ago

32/2=16

Yogita Ingle 4 years, 2 months ago

The perimeter of square = 4 × side

4 × side = 32
side = 32/4

side = 8 cm

Suzanne Smitha 4 years, 2 months ago

Perimeter of square = 4*side P=32cm 32cm = 4*side 32/4= side 8cm = side of square

ANSWER

New syllabus of class 9 cbse

Posted by Krish Achra? 4 years, 2 months ago

CBSE > Class 09 > Mathematics

1 answers

Rutaja Singh 4 years, 2 months ago

Chapters which are coming ? and the topics which are in bracket are not coming from the chapter Ch .1 number system (without number line ) Ch.2 polynomials (without remainder and factors theorem ) Ch.3 coordinate geometry Ch.4 lenear equation in two variables (examples are not in portion) Ch.6 lines and angles Ch.7 triangles (without inequalities) Ch.10 circles Ch. 11 construction (without some construction of triangle) Ch.12 heron's formula Ch.13 surface area and volume Ch.14 statics (without histogram) Ch.15 probability

ANSWER

1, 1, 4, 8, 9, 27, 16, 64, 25, ?

Posted by Devank Gupta 4 years, 2 months ago

CBSE > Class 09 > Mathematics

5 answers

Nilesh Mahto 4 years, 2 months ago

125

Suzanne Smitha 4 years, 2 months ago

125

Hanshika (Honey) 4 years, 2 months ago

1sq,1cub.,2sq,2qb.,3sq,3qb.,4sq,4qb.,5sq,_answer__5qb_=125_.

Devansh Tiwari 4 years, 2 months ago

125

Krish Achra? 4 years, 2 months ago

125

ANSWER

1.232332333

Posted by Abhishek Vashisth 4 years, 2 months ago

CBSE > Class 09 > Mathematics

2 answers

Shagun Nehra 4 years, 2 months ago

Irrational number

Sarita Panda 4 years, 2 months ago

It is an irrational no.

ANSWER

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