Question
Download Solution PDFx 2 - 2xy = 84 மற்றும் x - y = -10 எனில், y இன் மதிப்பு:
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFகொடுக்கப்பட்டது:
x 2 - 2xy = 84
x = y - 10
கணக்கீடுகள்:
கேள்வியின் படி,
x 2 - 2xy = 84 ----------(1)
மற்றும் x = y - 10
இப்போது, eq (1) இல் x = y - 10 ஐ பிரதியிட
(y - 10)² - 2y(y - 10) = 84
⇒y² - 20y + 100 - 2y² + 20y = 84
⇒- y² = 84 - 100
⇒ y² = 16
⇒ y = 4
எனவே, தேவையான மதிப்பு 4 ஆகும்.
Last updated on Jun 13, 2025
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