**Contents**

## What is the name of Chapter 2 in class 9 maths?

NCERT Solutions Class 9 Maths Chapter 2 Polynomials.

## Is class 9 Science hard?

In Class 9, Science can be a challenging subject to learn. Students will have to understand the concepts of physics, chemistry, and biology in depth so that the foundations they have to move onto more complex topics in the future are strong enough.

## Is class 9 maths tough?

Is Class 9 Maths tough? Ans: Class 9 Maths is not difficult if students practise it regularly. Students should understand the basic concepts given in so that they can also understand the concepts of Class 10 maths later. Students need to work hard to get good marks in Class 9 maths.

## How many chapters are there in class 9 math?

There are 15 chapters in class 9 maths.

## Why do we fall ill Class 9?

Answer: Two main causes of disease are immediate cause and contributory cause. Immediate cause: This is due to the organisms that enter our body and cause disease. Example, virus, protozoa, bacteria. Contributory cause: These are the secondary factors which lead these organisms to enter our body.

## How many exercise are there in chapter 2?

In chapter 2 of class 9th Maths, there are five exercises. The first exercise (Ex 2.1) contains five questions, the second exercise (Ex 2.2) contains four questions, the third exercise contains only three questions, the fourth exercise contains five questions, and the fifth exercise (Ex 2.5) contains sixteen questions.

## How can I top class 9?

**CBSE Class 9 Preparation: How to Be A Topper in Class 9 CBSE**

- Finish the CBSE Class 9 syllabus as early as possible.
- Do not waste time as you study. …
- Solve questions every time you finish a chapter.
- Do not blindly mug up the theories. …
- Solve sample papers after the entire syllabus is finished.
- Stay calm and confident.

## Which is the toughest chapter in class 9 maths?

Step-by-step explanation: Some students find Geometry difficult whereas others may find the Surface area and Volume, Constructions or Statistics. But, in general, maximum students find Geometry as the most difficult topic. Also, under the Geometry section Triangles is the most disliked chapter of class IX maths.

## How many hours should I study in Class 9?

Study for at least 5 hours a day. Students also often ask how many hours should a student of class 9 sleep and study.

## Who invented Maths?

**Archimedes is known as the Father of Mathematics. Mathematics is one of the ancient sciences developed in time immemorial….Table of Contents.**

1. | Who is the Father of Mathematics? |
---|---|

2. | Birth and Childhood |

3. | Interesting facts |

4. | Notable Inventions |

5. | Death of the Father of Mathematics |

## What is the hardest math problem?

53 + 47 = 100 : simples? But those itching for their Good Will Hunting moment, the Guinness Book of Records puts Goldbach’s Conjecture as the current longest-standing maths problem, which has been around for 257 years. It states that every even number is the sum of two prime numbers: for example, 53 + 47 = 100.

## What is the hardest question in math?

**These Are the 10 Toughest Math Problems Ever Solved**

- The Collatz Conjecture. Dave Linkletter. …
- Goldbach’s Conjecture Creative Commons. …
- The Twin Prime Conjecture. …
- The Riemann Hypothesis. …
- The Birch and Swinnerton-Dyer Conjecture. …
- The Kissing Number Problem. …
- The Unknotting Problem. …
- The Large Cardinal Project.

## What is solution class 9 Example?

Solution is a homogeneous mixture of two or more substances. For Ex: Sugar solution,salt solution,Alloys,Sea water,Copper Sulphate solution,Alcohol and water,Soda Water,Soft Drinks etc.

## What is solution of class 9th?

A solution is a homogeneous mixture of two or more components in which the particle size is smaller than 1 nm.

## What is solution 9th standard?

A solution is a homogeneous mixture of two or more substances. A solution may exist in any phase. A solution consists of a solute and a solvent. The solute is the substance that is dissolved in the solvent.

## What is vaccination Class 9?

Vaccination is the injection of a dead or weakened organism that forms immunity against that organism in the body. Immunization is the process by which an animal or a person stays protected from diseases.

## How many books are there in 9th class?

Answer: There is an average of 3-4 books in each subject for class 9.

## What is sound class 9th?

Sound is a mechanical energy which produces sensation of hearing. Sound is produced due to vibration of different objects. • Sound wave propagates as compressions & rarefactions in the medium. Sound waves are longitudinal waves.