In an Isosceles triangle ABC, AB=AC AND D IS A POINT ON BC PRODUCED. prove that AD²=AC²+BDxCD
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eska diagram ksa bnega may this must be
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The solution is in this pic .Hope this help .THANKS...
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AmanKumarYadav1:
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Hi! I cannot understand the last step.. AD²= AC²+(ED-EC)(ED-BE)
This is the formula I have used a^2-b^2 =(a+b)(a-b)
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