Q4 of 70 Page 125

In Δ ABC, the bisector of ∠A intersects in D. Prove that

and

Given, In ΔABC, the bisector of ∠A intersects in D

TO PROVE :


1)


2)



Proof: In ABC, the bisector of A intersects in D


∴


By applying componendo


∴



By applying invertendo



BD ...... (i)


Similarly,






DC = PROVED.


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