Day 376: NDA Maths

1. A.
   $0$
2. B.
   $1$
3. C.
   $abc$
4. D.
   $ab+bc+ca$

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1. A.
   3
2. B.
   4
3. C.
   5
4. D.
   6

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1. A.
   Both Statement 1 and Statement 2 are correct and Statement 2 is the correct explanation of Statement 1
2. B.
   Both Statement 1 and Statement 2 are correct but Statement 2 is not the correct explanation of Statement 1
3. C.
   Statement 1 is correct but Statement 2 is not correct
4. D.
   Statement 2 is correct but Statement 1 is not correct

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1. A.
   $ab + \sqrt{1-a^2}\sqrt{1-b^2}$
2. B.
   $ab - \sqrt{1-a^2}\sqrt{1-b^2}$
3. C.
   $a\sqrt{1-b^2} - b\sqrt{1-a^2}$
4. D.
   $a\sqrt{1-b^2} + b\sqrt{1-a^2}$

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1. A.
   $a^2+b^2$
2. B.
   $a^2-b^2$
3. C.
   $b^2-a^2$
4. D.
   $-(a^2+b^2)$

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1. A.
   128
2. B.
   64
3. C.
   32
4. D.
   0

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