Question

For the circles 3x² + 3y² + x + 2y – 1 = 0,2x² + 2y² + 2x - y - 1 = 0 radical axis is
1) 4x - 7y = 1
2) 3x + y - 2 = 0
3) x - 3y = 0
4) 4x - 7y = 5​

Answer 1

Step-by-step explanation:

s1:2x2+2y2−3x−y+3=0

s2:3x2+3y2−x+y−1=0

So, equation of radial axis is

s1−s2=0

(−9x−3y+9)−(−2x+2y−2)=0

−7x−5y+11=0

⇒7x+5y−11=0

Perpendicular distance from P(0,0) to 7x+5y−11=0 is

d=∣7411∣=7411

hope it helped you