AP EAMCET · Maths · Circle
In List-I, a pair of circles is given in A, B, C and in List-II, angle between those pair of circles is given. Match the items from List-I to List-II.
\begin{array}{lll}
\hline & \multicolumn{1}{c}{ List-I } & List-II \\
\hline A (x-2)^2+y^2=2(x-2)^2+(y-1)^2=1 & I & 90^{\circ} \\
\hline B x^2+y^2-6 x-6 y+9=0 & II 135^{\circ} \\
x^2+y^2-4 x+4 y-9=0 & & \\
\hline C x^2+y^2+4 x-14 y+28=0 & III 60^{\circ} \\
x^2+y^2+4 x-5=0 & & \\
\hline & & IV 30^{\circ} \\
\hline
\end{array}
The correct matching is
A B C
- A I II III
- B II I III
- C III I IV
- D III I IV
Answer & Solution
Correct Answer
(B) II I III
Step-by-step Solution
Detailed explanation
We know that, angle between two circles is given by \(\cos \theta=\frac{r_1^2+r_2^2-d^2}{2 r_1 r_2}\), where \(r_1\) and \(r_2\) are radius and \(d\) is distance between centres.…
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