1
BITSAT 2022
MCQ (Single Correct Answer)
+3
-1

The locus of the mid-point of the chord if contact of tangents drawn from points lying on the straight line $$4x - 5y = 20$$ to the circle $${x^2} + {y^2} = 9$$ is

A
$$20({x^2} + {y^2}) - 36x + 45y = 0$$
B
$$20({x^2} + {y^2}) + 36x - 45y = 0$$
C
$$36({x^2} + {y^2}) - 20x + 45y = 0$$
D
$$36({x^2} + {y^2}) + 20x - 45y = 0$$
2
BITSAT 2021
MCQ (Single Correct Answer)
+3
-1

Equation of circle which passes through the points (1, $$-$$2) and (3, $$-$$4) and touch the X-axis is

A
x2 + y2 + 6x + 2y + 9 = 0
B
x2 + y2 + 10x + 20y + 25 = 0
C
x2 + y2 + 6x + 4y + 9 = 0
D
None of the above
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