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.

CBSE Class 9/10 Hindi(B) Unseen Passage - Part -2 - कक्षा ९ / १० - हिंदी (ब)अपठित गद्यांश - २ (#class10Hindi)(#cbsenotes)(#eduvictors)

कक्षा ९ / १० - हिंदी (ब) अपठित गद्यांश - २

अपठित गद्यांश

निम्नलिखित गद्यांश को ध्यानपूर्वक पढ़कर नीचे दिए गए प्रश्नों के उत्तर दीजिए :

संसार के सभी धरम धर्मों में एक बात समान है, वह है प्रार्थना, ईश्वर भक्ति। प्रार्थना द्वारा हम अपने हदय के भाव प्रभु के सम्मुख रखते हैं और कुछ न कुछ उस शक्तिमान से माँगते हैं। जब हमें मार्ग नहीं सूझता तो हम प्रार्थना करते है। प्रार्थना का फल उत्तम हो, इसके लिए हम अपने अंदर उत्तम विचार और एकाग्र मन उत्पन्न करने होते हैं, क्योंकि विचार ही मनुष्य को पीड़ा पहुँचाते हैं या उससे मुक्त करते है। हमारे विचार ही हमे ऊँचाई तक ले जाते हैं या फिर खाई में फ़ेंक देते हैं। यह मन ही हमारे लिए दुःख लाता है और यही आनंद की ओर ले जाता है। यजुर्वेद के एक मंत्र के अनुसार यह मन सदा ही प्रबल और चंचल है। यह जड़ होते हुए भी सोते - जागते कभी भी चैन नहीं लेता। जितनी देर हम जागते रहते है, उतनी देर यह कुछ न कुछ सोचता हुआ भटकता रहता है। अव प्रश्न यह उठता है कि मन जो अत्यंत गतिशील है, उसको स्थिर और वश में कैसे किया जाए। मन को वश मे करने का यह तात्पर्य नहीं कि यह गतिहीन हो जाए और यह गतिहीन हो ही नहीं सकता। जिस प्रकार अग्नि का धर्म ऊष्ण है उस परकार चंचलता मन का धर्म है|

CBSE Class 8 - Social Science - History Chapter 9: Women Caste and Reform NCERT Questions and Answers (#class8History)(#cbsenotes)(#eduvictors)

Chapter 9: Women Caste and Reform

Class 8 - Social Science - History  

NCERT Questions and Answers

Question 1: What social ideas did the following people support? 
Rammohan Roy Dayanand Saraswati Veerasalingam Pantulu Jyotirao Phule Pandita Ramabai Periyar Mumtaz Ali Ishwarchandra Vidyasagar 

Answer:
Rammohun Roy: Supported the banning of the practice of 'Sati'

Dayanand Saraswati: Supported Widow remarriage

Veerasalingam Pantulu: Supported Widow remarriage

Jyotirao Phule: Supported equality among castes

Pandita Ramabai: Supported Women's Education, Economic Independence for women and set up widow homes

Periyar: Supported equality for untouchables.

Mumtaz Ali: Supported Women's Education

Ishwarchandra Vidyasagar: Supported Widow remarriage

CBSE Class 10 - Mathematics - Real Numbers and Polynomials - HCF and LCM related typical problems (#class10Maths)(#cbsenotes)(#eduvictors)

HCF and LCM related Typical Problems

Class 10 - Mathematics - Real Numbers and Polynomials

   
Q1: Find the HCF of  a²b⁴c³ and a³b²c⁵.

Answer:
H.C.F of  a³ and a² is a²,
H.C.F. of b² and b⁴ is b² and
H.C.F. of c⁵ and c³ is c³

∴ Required H.C.F. is a²b²c³.


Q2:  Find the HCF of 96 and 404 by prime factorisation method. Hence, find their LCM.

Class 11 - Business Studies - Forms Of Business Organisation - Sole-Proprietorship - Study Notes (#class11BusinessStudies)(#eduvictors)(#cbsenotes)

Forms Of Business Organisation -
Sole-Proprietorship

Class 11 - Business Studies - Study Notes

Sole proprietor means a form organization in which there is the only owner at business. He himself manages and is the only receipt of all profits and losses (risks).

Features of Sole-Proprietorship:

① Single ownership:
He is the sole owner of all the assets and resources of the business.

② No separate Legal Entity: 
The Business has no separate existence or entity that of the business. All the assets and liabilities of the business are that of the businessman.

③ No Legal Formalities: 
No Legal Formalities are required to start. manage and dissolve such business organization.