Question-Mathematics - Number System - Ask NCERT class 0 with solution questions answer. All ncert questions Answers for class 0 subject Mathematics chapter and topic Number System

**Question 1.** **Asked on :**05 February 2019:05:12:59 PM

If x = , what is the value of

*-Added by Harshita Rathore* See More Answers **Mathematics** » **Number System **

**Question 2.** **Asked on :**12 January 2019:05:54:25 PM

Rationalise the denominator = 1√3+√5+√7

*-Added by Himanshi Verma* See More Answers **Mathematics** » **Number System **

**Answer:**

*-Answered by Priyanshu Kumar* On 17 February 2020:02:57:05 PM

**Question 3.** **Asked on :**12 January 2019:10:52:27 AM

Find the zero of 2x-5.

*-Added by Akki chauhan* See More Answers **Mathematics** » **Number System**

**Answer:**

2x-5=0

2x=5

x= 5/2

*-Answered by Master Purushottam* On 22 August 2019:09:11:57 PM

**Answer:**

2x-5=0

2x=5

x= 5/2

*-Answered by Akki Chauhan* On 15 January 2019:09:04:26 AM

**Answer:**

2x-5=0

2x=5

x= 5/2

*-Answered by Khushi Chauhan* On 14 January 2019:06:02:58 PM

**Answer:**

2x-5=0

2x=5

x= 5/2

*-Answered by Akki Chauhan* On 14 January 2019:10:16:50 AM

**Answer:**

2x-5=0

2x=5

x= 5/2

*-Answered by Himanshi Verma* On 12 January 2019:05:19:01 PM

**Question 4.** **Asked on :**09 January 2019:09:37:10 AM

Ques.1. prove that 2+2= 5

*-Added by Master Purushottam* See More Answers **Mathematics** » **Number System**

**Answer:**

Start with: -20 = -20

Which is the same as: 16-36 = 25-45Which can also be expressed as: (2+2) 2 (9 X (2+2) = 52) 9 X 5

Add 81/4 to both sides: (2+2) 2 (9 X (2+2) + 81/4 = 52) 9 X 5 + 81/4

Rearrange the terms: ({2+2}) 9/2) 2 = (5-9/2) 2

Ergo: 2+2 - 9/2 = 5

Hence: 2 + 2 = 5

*-Answered by Nishant Verma* On 13 October 2019:09:38:52 AM

**Answer:**

Start with: -20 = -20

Which is the same as: 16-36 = 25-45Which can also be expressed as: (2+2) 2 (9 X (2+2) = 52) 9 X 5

Add 81/4 to both sides: (2+2) 2 (9 X (2+2) + 81/4 = 52) 9 X 5 + 81/4

Rearrange the terms: ({2+2}) 9/2) 2 = (5-9/2) 2

Ergo: 2+2 - 9/2 = 5

Hence: 2 + 2 = 5

*-Answered by Shivang Gupta* On 25 August 2019:03:18:52 PM

**Answer:**

Start with: -20 = -20

Which is the same as: 16-36 = 25-45Which can also be expressed as: (2+2) 2 (9 X (2+2) = 52) 9 X 5

Add 81/4 to both sides: (2+2) 2 (9 X (2+2) + 81/4 = 52) 9 X 5 + 81/4

Rearrange the terms: ({2+2}) 9/2) 2 = (5-9/2) 2

Ergo: 2+2 - 9/2 = 5

Hence: 2 + 2 = 5

*-Answered by Master Purushottam* On 22 August 2019:09:00:11 PM

**Answer:**

Start with: -20 = -20

Which is the same as: 16-36 = 25-45Which can also be expressed as: (2+2) 2 (9 X (2+2) = 52) 9 X 5

Add 81/4 to both sides: (2+2) 2 (9 X (2+2) + 81/4 = 52) 9 X 5 + 81/4

Rearrange the terms: ({2+2}) 9/2) 2 = (5-9/2) 2

Ergo: 2+2 - 9/2 = 5

Hence: 2 + 2 = 5

*-Answered by Akki Chauhan* On 15 January 2019:09:03:13 AM

**Answer:**

Start with: -20 = -20

Which is the same as: 16-36 = 25-45Which can also be expressed as: (2+2) 2 (9 X (2+2) = 52) 9 X 5

Add 81/4 to both sides: (2+2) 2 (9 X (2+2) + 81/4 = 52) 9 X 5 + 81/4

Rearrange the terms: ({2+2}) 9/2) 2 = (5-9/2) 2

Ergo: 2+2 - 9/2 = 5

Hence: 2 + 2 = 5

*-Answered by Himanshi Verma* On 14 January 2019:05:53:04 PM

**Answer:**

0 = 0

=>4–4 = 10 - 10

=>2²-2² = 2x5 - 2x5

=>(2 - 2)(2 + 2) = 5(2 - 2)

Cancelling (2–2) from both sides we get

2+2 = 5

Proved.

**But this is totally wrong, **I guess even you know that we can't cancel (2–2) from both sides.

Now the real proof

2+2 = 5

It's true only if:

*-Answered by Khushi Chauhan* On 14 January 2019:05:52:03 PM

**Answer:**

Let,

2^{2}-2^{2} = 10-10

Identity,

a^{2}-b^{2}=(a+b) (a-b)

(2+2) (2-2)=5(2-2)

Now, (2+2)=5(2-2)÷(2-2)

2+2=5 (Prooved)

*-Answered by Akki Chauhan* On 10 January 2019:09:44:37 AM

**Question 5.** **Asked on :**09 January 2019:09:36:20 AM

*-Added by Master Purushottam* See More Answers **Mathematics** » **Number System**

**Answer:**

The basis of the Euclidean

*-Answered by Nishant Verma* On 17 October 2019:02:37:10 PM

**Answer:**

The basis of the Euclidean

*-Answered by Akki Chauhan* On 05 September 2019:08:40:28 PM

**Answer:**

The basis of the Euclidean **division algorithm** is**Euclid's division lemma**. To calculate the Highest Common Factor (HCF) of two positive integers a and b we use **Euclid's division algorithm**. HCF is the largest number which exactly divides two or more positive integers.

*-Answered by Shivang Gupta* On 25 August 2019:03:18:57 PM

**Answer:**

The basis of the Euclidean **division algorithm** is**Euclid's division lemma**. To calculate the Highest Common Factor (HCF) of two positive integers a and b we use **Euclid's division algorithm**. HCF is the largest number which exactly divides two or more positive integers.

*-Answered by Master Purushottam* On 22 August 2019:09:00:20 PM

**Answer:**

The basis of the Euclidean **division algorithm** is**Euclid's division lemma**. To calculate the Highest Common Factor (HCF) of two positive integers a and b we use **Euclid's division algorithm**. HCF is the largest number which exactly divides two or more positive integers.

*-Answered by Himanshi Verma* On 22 March 2019:05:16:21 PM

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