Question
Download Solution PDFदो अवलोकनों के लिए, योग S है और गुणनफल P है। इन दो अवलोकनों का हरात्मक माध्य क्या है?
This question was previously asked in
CDS Maths Previous Paper 9 (Held On: 2 Feb 2020)
Answer (Detailed Solution Below)
Option 3 : \(\frac{2P}{S}\)
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Detailed Solution
Download Solution PDFदिया गया है:
योग S है और गुणनफल P है।
प्रयुक्त सूत्र:
a और b का हरात्मक माध्य = 2/(1/a + 1/b) = 2ab/(a + b)
गणना:
योग S है और गुणनफल P है।
तब, इन दो अवलोकनों का हरात्मक माध्य = 2P/S
∴ दो अवलोकनों का हरात्मक माध्य 2P/S है।
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