Mathematics 2008 Question Papers

Sol.  Images
Let AP = PQ =QB, the point of trisection
AP : PB= 1:2
Using Section formula

Q. 14. Triangle ABC is right-angled at B, and D is the mid-point of BC. Prove that AC2 = 4 AD2 3 AB2.

Sol:

Mathematics 2008 Question Papers Class X
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