Let the equation $x(x+2)(12-k)=2$ have equal roots. Then the distance of the point $\left(k, \frac{k}{2}\right)$ from the line $3 x+4 y+5=0$ is
JEE · Math · previous-year question
- A.15
- B.12
- C.$5 \sqrt{3}$
- D.$15 \sqrt{5}$
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