JEE Main2019Math
Q.
The equation of a tangent to the hyperbola 4x2–5y2 = 20 parallel to the line x–y = 2 is :
- A
x–y+9 = 0
- B
x–y+7 = 0
- C
x–y+1 = 0
- D
x–y–3 = 0
Solution

The equation of a tangent to the hyperbola 4x2–5y2 = 20 parallel to the line x–y = 2 is :
x–y+9 = 0
x–y+7 = 0
x–y+1 = 0
x–y–3 = 0
