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The ltngth of the tangtnt from (5,3) to ...

The ltngth of the tangtnt from (5,3) to the circle `x^(2)+y^(2)+10 x+k y-17=0` is `7,` then `k=`

A

9

B

-6

C

10

D

-2

Text Solution

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The correct Answer is:
B
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