CBSE Class 10 - Mathematics - Pair of Linear Equations in Two Variables - Worksheet (#class10Maths)(#cbsenotes)(#eduvictors)

Pair of Linear Equations in Two Variables

Worksheet

Class 10 - Mathematics

Fill in the blanks


1. The general form of a linear equation is ____________.

2. The graph of y = kx is a line ________ to the y-axis.

3.  The graph of y = ±kx is a line always passes through _______.

4. In a linear pair of equations has a unique pair of solutions when _________.

CBSE Class 11 - Maths - Chapter 1 - Different Types of Sets (#class11Maths)(#cbsenotes)(#eduvictors)

Different Types of Sets

Class 11 - Mathematics

Empty Set: 
A set is said to be empty set if it does not have any element. It is denoted by Φ or {}. Empty set is also called a null set or void set.
For example, The set of all odd natural numbers divisible by 2 is an empty set because odd natural numbers are not divisible by 2.

Finite Set: 
A set which contains finite number of elements is called a finite set.
For example, The set {x: x ∈  N and x ≤ 10} is a finite set because number of elements in the set are countable.

CBSE Class 12 - Business Studies - Principles Of Management - Question and Answers (#class12BusinessStudies)(#cbsenotes)(#eduvictors)

Principles Of Management 

Question and Answers

Class 12 - Business Studies 

Q1: Describe the concept of principles of management?

Answer: 

It is broad and general guideline for managerial decision making; are different from principles of science as they deal with human behaviour; are different from techniques of management as techniques are method whereas principles are guidelines to action and decision making; are different from values which are formed as generally accepted behaviour in society and having moral coordination where as principles are formed through research having technical nature. 

Q2: What is the nature of Principles of Management?

Class 10 - Chemistry - Chapter - Acids and Bases - Keys Points To Remember (#class10Chemistry)(#cbsenotes)(#eduvictors)

 Acids and Bases 

Class 10 - Chemistry 

(Important Points To Remember)

⑴ Acids are the substances which taste sour, change blue litmus red, are corrosive to metals and furnish H⁺ ions in their aqueous solutions.

⑵ Bases are the substances which taste bitter, change red litmus blue, feel slippery and furnish OH⁻ ions in their aqueous solutions.

⑶ Acid-base indicators are dyes or mixtures of dyes which are used to indicate the presence of acids and bases.

⑷ Indicators are the substances that show one colour in an acidic medium and another colour in a basic medium. Litmus, phenolphthalein and methyl orange are commonly used indicators. Onion, Vanilla extract and Clove oil are olfactory indicators.

CBSE Class 8/9/10 - Mathematics - Typical Factorisation Solved Problems (#class8Maths)(#cbsenotes)(#eduvictors)

Typical Factorisation Solved Problems

Class 8/9/10 - Mathematics

Q1: Factorise x⁴ + x² + 1

Answer: x⁴ + x² + 1

= (x⁴ + 2x² + 1) - x²

Using identity (A + B)² = A² + B² + 2AB

= (x² + 1)² - x²

Using identity A² - B² = (A + B)(A - B)

= (x² + 1 + x)(x² + 1 - x) [Answer]

Class 10 Economics: Chapter 1: Development (Questions and Answers)(#cbsenotes)(#class10Economics)(#eduvictors)

Class 10 Economics: Chapter 1: Development  

Questions and Answers

Q1: What is Per Capita Income?     

Answer: It is obtained by dividing national income by the population of a country i.e. Per Capita Income = National Income / Mid Year Population

Q2: Is progress synonym to development?

Answer: Yes, development is also known as progress.

Q3: What is meant by ‘economic development’? Write the two bases of measuring economic development of a country?

Answer: Economic development is a sustained increase in real per Capita income that promotes economic welfare by reducing poverty, unemployment & inequalities in the distribution of Income. Two bases of measuring economic development are National Income & per Capita Income.

CBSE Class 10 - Biology - Life Processes - Worksheet (#cbsenotes)(#class10Biology)(#cbsenotes)

Class 10 - Biology 

Life Processes - Worksheet

Fill in the blanks

1. The organisms which synthesize their own organic food are called as ___________ .

2. __________ nutrition involves the intake of complex material prepared by other organisms

3. ____ are required for the synthesis of proteins.

4. ____ regulate the exchange of gases and loss of water vapour in plant.