Day 298: NDA Maths

1. A.
   0
2. B.
   1
3. C.
   $\cos4\theta-\sin4\theta$
4. D.
   $\cos^24\theta-\sin^24\theta$

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1. A.
   $-A$
2. B.
   $-A^T$
3. C.
   $A$
4. D.
   $A^T$

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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.
   28/91
2. B.
   2/7
3. C.
   24/91
4. D.
   23/91

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

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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.
   $1-\cos\beta<0$
2. B.
   $1-\cos\beta\leq0$
3. C.
   $1-\cos\beta>0$
4. D.
   $1-\cos\beta\geq0$

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