(x2 - y2) और (x - y) का तृतीयानुपाती क्या है?

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SSC CGL 2023 Tier-I Official Paper (Held On: 18 Jul 2023 Shift 1)
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  1. (x - y)
  2. (x + y)

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दिया गया है:

प्रथम संख्या (a) = (x2 - y2)

द्वितीय संख्या (b) = (x - y)

प्रयुक्त सूत्र:

तृतीयानुपाती = {द्वितीय संख्या (b)}2/प्रथम संख्या (a)

(x2 - y2) = (x - y) × (x + y)

गणना:

तृतीयानुपाती = (x - y)2/(x2 - y2)

⇒ {(x - y) × (x - y)}/{(x - y) × (x + y)} 

\(\rm \frac{x-y}{x+y}\)

∴ सही उत्तर \(\rm \frac{x-y}{x+y}\) है।

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