If the line is a common tangent to the hyperbola and the circle , then which one of the following is true?
- (A)✓ Correct
- (B)
- (C)
- (D)
Answer: (A)
Solution
A line touches the circle when , and it touches the hyperbola when . A common tangent satisfies both, so . This gives , hence and . Then , so .
JEE Main · 2020 · 05 Sep 2020 · Shift 2 · Single correct option