Question

2) If A=(a,b), B(-a, -b) & p cas, ab) are
collinear then the ratio in which p
divides AB is​

Answer 1

Step-by-step explanation:

Let P divides AB in 1:m

A(a,b),B(−a,−b)

∴a

2

=

1−m

−a−am

⇒a=

m−1

1+m

ab=

1−m

−b−bm

⇒a=

m−1

1+m

∴a=

m−1

1+m

=1+

m−1

2

∴a−1=

m−1

2

m−1=

a−1

2

∴m=

a−1

2+a−1

=a−1

a+1

∴ Ratio a+1:a−1

Answer 2

$ratio \: a + 1 \\ a - 1$