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What is the value of (9^4 \div 9^2)?(9^4 \div 9^2) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 8181
When powers with the same base are divided, subtract their exponents: \(9^4 \div 9^2 = 9^{4-2}=9^2=81\). Therefore, 81 is correct. The option 9 is only \(9^1\), so it is not correct. Exam tip: use \(a^m \div a^n=a^{m-n}\), where \(a\ne0\).समान आधार वाली घातों के भाग में घातांक घटाए जाते हैं: \(9^4 \div 9^2 = 9^{4-2}=9^2=81\)। इसलिए 81 सही उत्तर है। 9 केवल \(9^1\) है, इसलिए यह सही नहीं है। परीक्षा टिप: \(a^m \div a^n=a^{m-n}\), जहाँ \(a\ne0\)।
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