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DOON COLLEGE OF EDUCATION
Submitted by:-
BASANT KUMAR
Enroll.- MSU21200965
Mathematics
B.Ed. II YEAR
(2021-2023)
SUNDERPUR, SAHARANPUR, U.P.
(MSU, PUNWARKA, SRE)
TOPIC : बीजगणितीय सर्वसणिकाएँ
बीजगणितीय सर्वसणिकाएँ
बीजगणितीय सर्वसणिकाएँ ऐसी बीजगणितीय सिीकरिे होती है, जोणक उसिे
उपस्थित चरोों क
े सभी िानो क
े णिए सत्य होती है। इसका अिव है की चर क
े
णकसी भी िान क
े णिए सर्वसणिका क
े बायेँ पक्ष (LHS) र् दायेँ पक्ष (RHS) का
िान सदैर् बराबर रहता है।
सर्वसणिकाओ क
े प्रयोग से सिीकरिोों र् क
ु छ आोंणकक प्रश्ोों को हि करना
आसान हो जाता है।
उदाहरि – क
ु छ सर्वसणिकाएँ णनम्न है-
• सर्वसमिका 1 :- 𝒂 + 𝒃 𝟐
= 𝒂𝟐
+ 𝒃𝟐
+ 𝟐𝒂𝒃
• सर्वसमिका 2 :- 𝒂 − 𝒃 𝟐 = 𝒂𝟐 + 𝒃𝟐 − 𝟐𝒂𝒃
• सर्वसमिका 3 :- 𝒂𝟐 − 𝒃𝟐 = 𝒂 + 𝒃 𝒂 − 𝒃
सर्वसणिकाओ की सहायता से प्रश्ोों को हि करना
प्रश्न 1: 2x + 3 2 को हि करो।
सािान्य हल : 2x + 3 2 = 2x + 3 2x + 3
2x + 3 2 = 2x × 2𝑥 + 2𝑥 × 3 + 3 × 2𝑥 + 3 × 3
= 4𝑥2
+ 6𝑥 + 6𝑥 + 9
= 4𝑥2
+ 12𝑥 + 9
सर्वसमिका द्वारा हल : 𝑎 + 𝑏 2 = 𝑎2 + 𝑏2 + 2𝑎𝑏 का प्रयोग करने पर,
𝑎 = 2𝑥 , 𝑏 = 3 रखने पर,
2x + 3 2 = 2x 2 + 32 + 2 × 2𝑥 × 3
= 4𝑥2 + 12𝑥 + 9
प्रश्न 2 : सर्वसमिका-2 की सहायता से मिम्न का िाि ज्ञात करो।
1. 𝟒𝒙 − 𝟑𝒚 𝟐 2. 95𝟐
हल: 1. सर्वसणिका 𝒂 − 𝒃 𝟐
= 𝒂𝟐
+ 𝒃𝟐
− 𝟐𝒂𝒃 से तुलिा करिे पर
a = 4 x र् b = 3 y रखने पर,
4𝑥 − 3𝑦 2 = 4𝑥 2 + 3𝑦 2 − 2 × 4𝑥 × 3𝑦
= 16𝑥2 + 9𝑦2 − 24𝑥𝑦
हल: 2. 952 = (100 − 5)2
= 100 2 + 5 2 − 2 × 100 × 5
= 10000 + 25 − 1000
= 9025
प्रश् 3 : णनम्न का िाि ज्ञात करो।
1. 𝒙 − 𝟑 𝒙 + 𝟑 2. 991 × 1009
हल: 1. 𝑎 + 𝑏 𝑎 − 𝑏 = 𝑎2 −𝑏2 से तुिना करने पर
a = x , b = 3 रखने पर,
𝒙 − 𝟑 𝒙 + 𝟑 = 𝒙𝟐 − 𝟑𝟐
= 𝒙𝟐
− 𝟗
2. 991 × 1009 = (1000-9)(1000+9)
= 1000𝟐 − 9𝟐
= 1000000 – 81
= 999919
THANK YOU…..
मिष्कर्व
सर्वसणिकाओ क
े प्रयोग से सर्ािोों को हि करना आसान हो
जाता है।

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mathematics basant kumar ppt for bed practical

  • 1. DOON COLLEGE OF EDUCATION Submitted by:- BASANT KUMAR Enroll.- MSU21200965 Mathematics B.Ed. II YEAR (2021-2023) SUNDERPUR, SAHARANPUR, U.P. (MSU, PUNWARKA, SRE) TOPIC : बीजगणितीय सर्वसणिकाएँ
  • 2. बीजगणितीय सर्वसणिकाएँ बीजगणितीय सर्वसणिकाएँ ऐसी बीजगणितीय सिीकरिे होती है, जोणक उसिे उपस्थित चरोों क े सभी िानो क े णिए सत्य होती है। इसका अिव है की चर क े णकसी भी िान क े णिए सर्वसणिका क े बायेँ पक्ष (LHS) र् दायेँ पक्ष (RHS) का िान सदैर् बराबर रहता है। सर्वसणिकाओ क े प्रयोग से सिीकरिोों र् क ु छ आोंणकक प्रश्ोों को हि करना आसान हो जाता है।
  • 3. उदाहरि – क ु छ सर्वसणिकाएँ णनम्न है- • सर्वसमिका 1 :- 𝒂 + 𝒃 𝟐 = 𝒂𝟐 + 𝒃𝟐 + 𝟐𝒂𝒃 • सर्वसमिका 2 :- 𝒂 − 𝒃 𝟐 = 𝒂𝟐 + 𝒃𝟐 − 𝟐𝒂𝒃 • सर्वसमिका 3 :- 𝒂𝟐 − 𝒃𝟐 = 𝒂 + 𝒃 𝒂 − 𝒃
  • 4. सर्वसणिकाओ की सहायता से प्रश्ोों को हि करना प्रश्न 1: 2x + 3 2 को हि करो। सािान्य हल : 2x + 3 2 = 2x + 3 2x + 3 2x + 3 2 = 2x × 2𝑥 + 2𝑥 × 3 + 3 × 2𝑥 + 3 × 3 = 4𝑥2 + 6𝑥 + 6𝑥 + 9 = 4𝑥2 + 12𝑥 + 9 सर्वसमिका द्वारा हल : 𝑎 + 𝑏 2 = 𝑎2 + 𝑏2 + 2𝑎𝑏 का प्रयोग करने पर, 𝑎 = 2𝑥 , 𝑏 = 3 रखने पर, 2x + 3 2 = 2x 2 + 32 + 2 × 2𝑥 × 3 = 4𝑥2 + 12𝑥 + 9
  • 5. प्रश्न 2 : सर्वसमिका-2 की सहायता से मिम्न का िाि ज्ञात करो। 1. 𝟒𝒙 − 𝟑𝒚 𝟐 2. 95𝟐 हल: 1. सर्वसणिका 𝒂 − 𝒃 𝟐 = 𝒂𝟐 + 𝒃𝟐 − 𝟐𝒂𝒃 से तुलिा करिे पर a = 4 x र् b = 3 y रखने पर, 4𝑥 − 3𝑦 2 = 4𝑥 2 + 3𝑦 2 − 2 × 4𝑥 × 3𝑦 = 16𝑥2 + 9𝑦2 − 24𝑥𝑦 हल: 2. 952 = (100 − 5)2 = 100 2 + 5 2 − 2 × 100 × 5 = 10000 + 25 − 1000 = 9025
  • 6. प्रश् 3 : णनम्न का िाि ज्ञात करो। 1. 𝒙 − 𝟑 𝒙 + 𝟑 2. 991 × 1009 हल: 1. 𝑎 + 𝑏 𝑎 − 𝑏 = 𝑎2 −𝑏2 से तुिना करने पर a = x , b = 3 रखने पर, 𝒙 − 𝟑 𝒙 + 𝟑 = 𝒙𝟐 − 𝟑𝟐 = 𝒙𝟐 − 𝟗 2. 991 × 1009 = (1000-9)(1000+9) = 1000𝟐 − 9𝟐 = 1000000 – 81 = 999919
  • 7. THANK YOU….. मिष्कर्व सर्वसणिकाओ क े प्रयोग से सर्ािोों को हि करना आसान हो जाता है।