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If (a_n=n^3), what is the value of (a_5-a_3)?यदि (a_n=n^3) है तो (a_5-a_3) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: 9898
Given \(a_n=n^3\), we get \(a_5=5^3=125\) and \(a_3=3^3=27\). Therefore, \(a_5-a_3=125-27=98\). Option 96 may result from an error in evaluating the cubes or in subtraction. Exam tip: find each term separately before taking their difference.दिया है कि \(a_n=n^3\)। अतः \(a_5=5^3=125\) और \(a_3=3^3=27\)। इसलिए \(a_5-a_3=125-27=98\)। विकल्प 96 तब मिल सकता है जब घन या घटाव में त्रुटि हो जाए। परीक्षा टिप: पहले प्रत्येक पद का मान अलग-अलग निकालें, फिर उनका अंतर करें।
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