Day 29: NDA Maths

1. A.
   The coefficient of $x^{100}$
2. B.
   The coefficient of $x^{99}$
3. C.
   The coefficient of $x^{51}$
4. D.
   The coefficient of $x^{50}$

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

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

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1. A.
   $\sqrt{3}$
2. B.
   $\sqrt{5}$
3. C.
   $2\sqrt{3}$
4. D.
   $2\sqrt{5}$

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1. A.
   $\tan^{-1}(10^x)+c$
2. B.
   $(\ln10)\tan^{-1}(10^x)+c$
3. C.
   $\dfrac{1}{\ln10}\tan^{-1}(10^x)+c$
4. D.
   $\ln(10^x+10^{-x})+c$

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