Question:-
139. A circle C2 is concentric with the circle C1: x2 + y2 - 4x + 6y - 12 = 0 and has a radius twice that of C1. The equation of the circle C2 is
Option (A)
x2 + y2 - 4x + 6y - 13 = 0
Option (B)
x2 + y2 - 4x + 6y - 87 = 0
Option(C)
x2 + y2 - 4x + 6y - 100 = 0
Option(D)
x2 + y2 -4x + 6y - 88 = 0
Correct Option:
()
question-answer-faq-2638