The line 3x – 2y = k meets the circle x 2 + y 2 = 4r 2 at only one point, if k 2 is

Mathematics · JEE Main · NTA Exams — Co-ordinate Geometry

1. 20r²
2. 52r²
3. \(\frac{52}{9} \mathrm{r}^{2}\)
4. \(\frac{20}{9} r^{2}\)

Answer

(B) 52r 2

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