1
NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
What is the radius of the circle 4x2 + 4y2 - 20x + 12y - 15 = 0?
A
14 units
B
10.5 units
C
7 units
D
3.5 units
2
NDA Mathematics 18 April 2021
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
A chord subtends an angle 120° at the centre of a unit circle. What is the length of the chord?
A
√2 - 1 units
B
√3 - 1 units
C
√2 units
D
√3 units
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