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If (\frac{(m+2)!}{m!}=90), what is the value of (m)?यदि (\frac{(m+2)!}{m!}=90) हो, तो (m) का मान क्या है?
Answer and explanationउत्तर और व्याख्या
Correct answer:सही उत्तर: (8)(8)
(\frac{(m+2)!}{m!}=(m+2)(m+1)), so (10\cdot9=90) gives (m=8). Identify the product of consecutive numbers.(\frac{(m+2)!}{m!}=(m+2)(m+1)), इसलिए (10\cdot9=90) से (m=8)। लगातार संख्याओं का गुणनफल पहचानें।
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