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If (a!=5040), what is the value of ((a-4)!)?यदि (a!=5040) हो, तो ((a-4)!) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 66
Since \(5040=7!\), we get \(a=7\). Therefore, \((a-4)!=(7-4)!=3!=6\). The option 24, which is \(4!\), may result from incorrectly taking \(a-4\) as 4. Exam tip: first determine the variable from the given factorial, then substitute it into the required expression.क्योंकि \(5040=7!\), अतः \(a=7\)। इसलिए \((a-4)!=(7-4)!=3!=6\)। विकल्प 24, अर्थात \(4!\), तब मिलता यदि \((a-4)!\) में \(a-4\) को गलती से 4 मान लिया जाए। परीक्षा टिप: पहले दिए गए फैक्टोरियल से चर का मान ज्ञात करें, फिर शेष व्यंजक में उसे प्रतिस्थापित करें।
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