Day 325: CDS Maths

1. A.
   4
2. B.
   2
3. C.
   1
4. D.
   $\frac{1}{2}$

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1. A.
   $3\pi r^2$
2. B.
   $\dfrac{2\pi r^2 \sqrt{4\pi^2 + 9}}{3}$
3. C.
   $\dfrac{\pi r^2 \sqrt{\pi^2 + 1}}{3}$
4. D.
   $\dfrac{\pi r^2 \sqrt{4\pi^2 + 9}}{3}$

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1. A.
   3
2. B.
   4
3. C.
   5
4. D.
   6

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1. A.
   1
2. B.
   2
3. C.
   3
4. D.
   Infinite

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1. A.
   1 only
2. B.
   2 only
3. C.
   Both 1 and 2
4. D.
   Neither 1 nor 2

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