Question

In an equilateral triangle ABC, D is a point on side BC such that BD=BC. Prove that
9 AD2=7 AB?​

Answer 1

Answer:

I think so the question is wrong

In an equilateral triangle ABC, D is a point on side BC such that BD=BC. Prove that

9 AD2=7 AB

how is that possible ???

Answer 2

Answer:

Check your answer please