Question
Download Solution PDFx2 - 2xy = 84 మరియు x - y = -10 అయితే, y విలువ:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFఇచ్చిన:
x2 − 2xy = 84
x = y - 10
లెక్కలు:
ప్రశ్న ప్రకారం,
x2 − 2xy = 84 ------------(1)
మరియు x = y - 10
ఇప్పుడు, సమీ (1)లో x = y - 10 ఉంచండి
(y - 10)² - 2y(y - 10) = 84
⇒y² - 20y + 100 - 2y² + 20y = 84
⇒- y² = 84 - 100
⇒ y² = 16
⇒ y = 4
కాబట్టి, అవసరమైన విలువ 4.
Last updated on Jul 12, 2025
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