Day 254: NDA Maths

1. A.
   $\sin^{-1}x$
2. B.
   $\sin^{-1}\frac{x}{3}$
3. C.
   $3\sin^{-1}x$
4. D.
   $3\sin^{-1}\frac{x}{3}$

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1. A.
   $\frac{1}{\sqrt{9-x^2}}$
2. B.
   $\frac{1}{\sqrt{3-x^2}}$
3. C.
   $\frac{3}{\sqrt{9-x^2}}$
4. D.
   $\frac{9}{\sqrt{9-x^2}}$

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1. A.
   0
2. B.
   $1/2$
3. C.
   $1/3$
4. D.
   $1/4$

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1. A.
   $3x - 5y - 15 = 0$
2. B.
   $3x - 5y + 15 = 0$
3. C.
   $5x - 3y - 15 = 0$
4. D.
   $5x + 3y - 15 = 0$

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1. A.
   3
2. B.
   4
3. C.
   5
4. D.
   More than 5

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1. A.
   0
2. B.
   1
3. C.
   3
4. D.
   $a + b + c$

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