Question

The points A(1,-3) B(2,-2) C(5,1) are collinear then the harmonic conjugate of B with respect to A and C

Answer 1

Answer:

Step-by-step explanation:

Let B divides A and C is ratio k:1

5k + 1/k+1 = 2

3k = 1

k = 1/3

 

Hence

 

Hence divides internally

 

Now harmonic  conuugatc will be the point which divides A and C in 1:3 externally

 

Hence

 

Or we can say that A divides in 1:2 internally

 

2x + 5 / 3 = 1

 

x = -1

 

And

 

2y + 1/3 = -3

 

y = -5

 

Hence harmonic conjugate = (-1, -5)

Answer 2

Answer:

refer to the above pics dear

Step-by-step explanation:

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