Day 310: NDA Maths

1. A.
   1
2. B.
   2
3. C.
   4
4. D.
   8

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1. A.
   $|\beta|$
2. B.
   2
3. C.
   1
4. D.
   0

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1. A.
   outside the ellipse
2. B.
   inside the ellipse but not at the focus
3. C.
   on the ellipse
4. D.
   at the focus

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1. A.
   $\frac{e^\pi+1}{2}$
2. B.
   $\frac{e^\pi-1}{2}$
3. C.
   $e^\pi+1$
4. D.
   $\frac{e^\pi+1}{4}$

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1. A.
   $\frac{d^2x}{dt^2}+\mu x=0$
2. B.
   $\frac{d^2x}{dt^2}-\mu x=0$
3. C.
   $x\frac{dx}{dt}+\mu t=0$
4. D.
   $\frac{dx}{dt}+\mu xt=0$

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