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A(x1,y1),B(x2,y2),C(x3,y3) are the verti...

`A(x_1,y_1),B(x_2,y_2),C(x_3,y_3)` are the vertices of a triangle ABC. lx+my+n=0 is an equation of the line L.
Answer the following questions based on above passage :
If L intersects the sides BC, CA and AB of the triangle ABC at P, Q, R respectively then `(BP)/(PC)xx(CQ)/(QA)xx(AR)/(RB)` is equal to

A

-1

B

`-1//2`

C

`1//2

D

1

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The correct Answer is:
A
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