Day 187: NDA Maths

1. A.
   $\dfrac{a^x}{\ln a}+c$
2. B.
   $\dfrac{e^x}{\ln a}+c$
3. C.
   $\dfrac{e^x}{\ln(ae)}+c$
4. D.
   $\dfrac{ae^x}{\ln a}+c$

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

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1. A.
   $\frac{\pi}{8}$
2. B.
   $\frac{\pi}{6}$
3. C.
   $\frac{\pi}{4}$
4. D.
   $\frac{\pi}{3}$

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1. A.
   $x \geq -4,\, y \leq 0$
2. B.
   $x \leq 4,\, y \geq 0$
3. C.
   $x \leq -4,\, y = 0$
4. D.
   $x \geq -4,\, y = 0$

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1. A.
   $3x-2y=5$
2. B.
   $2x-3y=1$
3. C.
   $2x-3y=5$
4. D.
   $2x+3y=-1$

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