Day 300: NDA Maths

1. A.
   90°
2. B.
   60°
3. C.
   45°
4. D.
   30°

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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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1. A.
   C(n+1, r)
2. B.
   C(n-1, r+1)
3. C.
   C(n, r+1)
4. D.
   C(n+2, r)

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1. A.
   $x^2+y^2+3x+2=0$
2. B.
   $x^2+y^2+3x+12y+2=0$
3. C.
   $x^2+y^2+2x=0$
4. D.
   $x^2+y^2=5$

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

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1. A.
   $\frac{n\pi}{2}$
2. B.
   $\frac{(2n+1)\pi}{2}$
3. C.
   $n\pi$
4. D.
   $2n\pi$ only

Tap an option to check your answer.

1. A.
   $\frac{n\pi}{2}$
2. B.
   $\frac{(2n+1)\pi}{2}$
3. C.
   $n\pi$
4. D.
   $2n\pi$

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