The perpendicular from A on side BC of a triangle ABC intersects BC at D such that DB=3CD .prove that 2AB square =2AC square +BC square

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The perpendicular from A on side BC of a triangle ABC intersects BC at D such that DB=3CD .prove that 2AB square =2AC square +BC square

Extra Question from Triangles.
Important questions from Triangles for Board Exam class 10, CBSE Board, Solutions of all important questions for CBSE Board Exams class 10.
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Questions from Chapter Triangles.

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