Question

In ABC point D is on side A. A-D-C side FA|| side BD|| side EC
then prove that 1/AF=1/CE=1BD​

Answer 1

Step-by-step explanation:

Clearly, △APD∼△CPB

⇒

CP

AP

=

PB

PD

⇒

AC−AP

AP

=

PB

PD

⇒

AP

AC

−1

1

=

PB

PD

⇒

3−1

1

=

PB

PD

∴ DP=

2

1

BP