Question
Download Solution PDFযদি x = b + c, y = c - a, z = a - b হয়, তাহলে x2 + y2 + z2 - 2xy - 2xz + 2yz এর মান নির্ণয় করুন।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত:
x = b + c, y = c - a, z = a - b
অনুসৃত সূত্র:
x2 + y2 + z2 - 2xy - 2xz + 2yz. = (-x + y + z)2
গণনা:
উপরের সমীকরণে x, y, z এর মান বসিয়ে পাই,
=> (-x + y + z)2 = (-(b+c) + (c-a) + (a-b))2
=> (-b - c + c -a + a - b)2
=> (-2b)2
=> 4b2
সুতরাং, সঠিক উত্তর হল '4b2'Last updated on Jun 2, 2025
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