AP EAMCET · Maths · Circle
The equation of the pair of straight lines parallel to and touching the circle is
- A
- B
- C
- D
Answer & Solution
Correct Answer
(A)
Step-by-step Solution
Detailed explanation
Given that: x2+y2-6x-4y-12=0 Centre of the circle: -g,-f=3,2 Radius of the circle: r=g2+f2-c=9+4+12=5 As we know that diameter is always perpendicular to the tangent. Hence, at the ends of the diameter perpendicular to x-axis, tangents will be parallel to x-axis. So, tangents at…
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