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What is the value of \(3!\cdot4!\)?\(3!\cdot4!\) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 144144
\(3!=3\times2\times1=6\) and \(4!=4\times3\times2\times1=24\). Therefore, \(3!\cdot4!=6\times24=144\). Note that 120 is the value of \(5!\), so it is not the required product. Exam tip: evaluate each factorial first, then multiply the results.\(3!=3\times2\times1=6\) तथा \(4!=4\times3\times2\times1=24\)। अतः \(3!\cdot4!=6\times24=144\)। 120, \(5!\) का मान है, इसलिए वह इस गुणनफल के लिए सही नहीं है। परीक्षा टिप: पहले प्रत्येक फैक्टोरियल का मान निकालकर फिर गुणा करें।
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