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The angle between the pair of straight l...

The angle between the pair of straight lines formed by joining the points of intersection of `x^2+y^2=4` and `y=3x+c` to the origin is a right angle. Then `c^2` is equal to

A

-1

B

6

C

13

D

20

Text Solution

Verified by Experts

The correct Answer is:
A
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