Class 8 - Ex 1.1Solved By Prem Sir

गुणधर्म समझिए - Prem Eternal Education

गुणधर्म समझाइए

1️⃣ गुणनात्मक तत्त्व धर्म (Multiplicative Identity)

उदाहरण: -4/5 × 1 = -4/5

👉 किसी भी संख्या को 1 से गुणा करने पर वही संख्या आती है।

2️⃣ क्रम विनिमेयता (Commutative Property)

उदाहरण: 13/17 × (-2/3) = (-2/3) × 13/17

👉 दो संख्याओं के स्थान बदलने पर भी गुणा का उत्तर समान रहता है।

3️⃣ गुणनात्मक प्रतिलोम गुणधर्म (Multiplicative Inverse)

उदाहरण: (-19/29) × (29/19) = 1

👉 किसी संख्या को उसके उल्टे (reciprocal) से गुणा करने पर उत्तर 1 आता है।

4️⃣ सहवर्ती गुणधर्म (Associative Property)

उदाहरण: (1/3 × 6) × 4/3 = 1/3 × (6 × 4/3)

👉 ब्रैकेट का स्थान बदलने पर भी उत्तर समान आता है।

गुणधर्म Hinglish Name Trick to Remember
गुणनात्मक तत्त्व धर्म Multiplicative Identity 1 se multiply karo, number same
क्रम विनिमेयता Commutative Property Order badlo, answer same
गुणनात्मक प्रतिलोम Multiplicative Inverse Number × uska ulta = 1
सहवर्ती गुणधर्म Associative Property Bracket kahin bhi lagao, answer same

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