Question
Download Solution PDFयदि \(\frac{r}{13} + \frac{13}{r} = 1\) है, तो r3 का मान क्या होगा?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
\(\frac{r}{13} + \frac{13}{r} = 1\)
प्रयुक्त अवधारणा:
यदि x + (1/x) = 1
तब x3 = - 1
गणना:
माना, (r/13) = x
प्रश्न के अनुसार:
⇒ \(\frac{r}{13} + \frac{13}{r} = 1\)
⇒ x + 1/x = 1
तब x3 = - 1
अब, x का मान रखने पर:
⇒ (r/13)3 = - 1
⇒ r3 = - 2197
∴ सही उत्तर -2197 है।
Last updated on Jun 13, 2025
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