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जोड़िए: x2 - y2 - 1 , y2 - 1 - x2, 1 - x2 - y2 - Mathematics (गणित)

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Question

जोड़िए: x2 - y2 - 1 , y2 - 1 - x2, 1 - x2 - y2

Sum

Solution

(x2 - y2 - 1) + (y2 - 1 - x2) + (1 - x2 - y2)

= x2 - y2 - 1 + y2 - 1 - x2 + 1 - x2 - y2

= x2 - x2 - x2 − y2 + y2 - y2 - 1 - 1 + 1

= x2(1 - 1 - 1) + y2 (-1 + 1 - 1) + (- 1 - 1 + 1)

= - x2 - y2 - 1

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बीजीय व्यंजकों का योग
  Is there an error in this question or solution?
Chapter 12: बीजीय व्यंजक - प्रश्नावली 12.2 [Page 256]

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NCERT Mathematics [Hindi] Class 7
Chapter 12 बीजीय व्यंजक
प्रश्नावली 12.2 | Q 1. (x) | Page 256
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