Question
Download Solution PDFx के किन संभावित मान के लिए संख्याएँ - 2/7, x, - 7/2 गुणोत्तर श्रेणी में हैं?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFअवधारणा :
यदि a, b और c गुणोत्तर श्रेणी में हैं तो b2 = ac
गणना:
दिया गया है: संख्याएँ - 2/7, x, - 7/2 गुणोत्तर श्रेणी में हैं
जैसा कि हम जानते हैं कि, यदि a, b और c गुणोत्तर श्रेणी में हैं तो b2 = ac
यहाँ, a = - 2/7, b = x और c = - 7/2
⇒ x2 = (-2/7) × (-7/2) = 1
⇒ x = ± 1
अत: सही विकल्प 3 है।
Last updated on May 31, 2025
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