Question
Download Solution PDFx = b + c, y = c - a, z = a - b எனில், x2 + y2 + z2 - 2xy - 2xz + 2yz இன் மதிப்பைக் கண்டறியவும்.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFகொடுக்கப்பட்டது:
x = b + c, y = c - a, z = a - b
பயன்படுத்தப்படும் சூத்திரம்:
x2 + y2 + z2 - 2xy - 2xz + 2yz. = (-x + y + z)2
கணக்கீடு:
மேலே உள்ள சமன்பாட்டில் x, y, z மதிப்புகளை பிரதியிட,
=> (-x + y + z)2 = (-(b+c) + (c-a) + (a-b))2
=> (-b - c + c -a + a - b)2
=> (-2b)2
=> 4b2
எனவே, சரியான பதில் '4b2'.Last updated on Jun 2, 2025
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