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JEE MATHEMATICS MCQ: CIRCLES

1 Easy

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Application +4 | -1

If

3x + y + k = 0

is a tangent to the circle

{x^2} + {y^2} = 10

, the values of

k

are

View answer and explanation

Correct option: C

\pm 10

Option C (

\pm 10

) is correct because it represents the values of

k

for which the line

3x + y + k = 0

is tangent to the circle

{x^2} + {y^2} = 10

.

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