Question
Download Solution PDFదీర్ఘవృత్తం యొక్క నాభులు (±3, 0) మరియు దాని ఉత్కేంద్రత 1/3 అయితే, దాని సమీకరణాన్ని కనుగొనండి.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFభావన:
దీర్ఘవృత్తం యొక్క సాధారణ సమీకరణం:
\(\frac{x^2}{a^2}+\frac{y^2}{b^2}=1\)
ఇక్కడ, నాభుల నిరూపకాలు (±ae, 0).
అలాగే, మనకు b2 = a2(1 - e2) ఉంది, ఇక్కడ e ఉత్కేంద్రత.
గణన:
నాభుల నిరూపకాలు (±3, 0) అయినందున.
⇒ ae = 3
⇒ a x (1/3) = 3 (∵ e = 1/3)
⇒ a = 9
ఇప్పుడు, b2 = a2(1 - e2)
\(⇒ b^{2}=81\left ( 1-\frac{1}{9} \right )\)
⇒ b2 = 72
దీర్ఘవృత్తం యొక్క సాధారణ సమీకరణంలో a2 మరియు b2 విలువలను ఉంచడం ద్వారా, మనకు వస్తుంది
\(\frac{x^2}{81}+\frac{y^2}{72}=1\)
కాబట్టి, దీర్ఘవృత్తం యొక్క సమీకరణం \(\frac{x^2}{81}+\frac{y^2}{72}=1\).
Last updated on Jun 20, 2025
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