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AP EAMCET2005MathematicsProperties of Triangles

In a A B C, (b+c) A 2 ( B-C 2 ) is equal to

Options

  1. Aa
  2. Bb
  3. Cc
  4. D0

Correct answer

D. 0

Step-by-step solution

aligned & (b+c) A 2 ( B-C 2 ) & (b+c) A 2 ( B-C 2 ) & =(b+c) (b-c) (b+c) A 2 A 2 & =b-c & (b+c) B-C 2 A 2 & =b-c+c-a+a-b=0 & aligned

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