दी गई संख्याओं के व्युत्क्रमों के योग का व्युत्क्रम ज्ञात कीजिए।

\(\frac{2}{5}, \frac{5}{4}, \frac{6}{8}, \frac{6}{5}, \frac{9}{6}\)

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  1. \(\frac{82}{15}\)
  2. \(\frac{15}{92}\)
  3. \(\frac{15}{82}\)
  4. \(\frac{92}{15}\)

Answer (Detailed Solution Below)

Option 2 : \(\frac{15}{92}\)
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दिया गया:

\(\frac{2}{5}, \frac{5}{4}, \frac{6}{8}, \frac{6}{5}, \frac{9}{6}\)

प्रयुक्त सूत्र:

दी गई संख्याओं के व्युत्क्रमों के योग का व्युत्क्रम:

गणना:

पारस्परिक: 5/2, 4/5, 8/6, 5/6, 6/9

व्युत्क्रम का योग = 5/2 + 4/5 + 8/6 + 5/6 + 6/9

⇒ योग = 5/2 + 4/5 + 4/3 + 5/6 + 2/3

⇒ योग = 75/30 + 24/30 + 40/30 + 25/30 + 20/30

⇒ योग = (75 + 24 + 40 + 25 + 20)/30

⇒ योग = 184/30 = 92/15

अतः योग का व्युत्क्रम = 1/(92/15) = 15/92

∴ सही उत्तर विकल्प (2) है।

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