Day 347: NDA Maths

1. A.
   $x^2 - 5x + 4$
2. B.
   $x^2 - 5x + 6$
3. C.
   $x^2 + 3x + 3$
4. D.
   $x^2 - 3x + 1$

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1. A.
   $(-1)^k(k-1)\pi$
2. B.
   $(-1)^{k-1}(k-1)\pi$
3. C.
   $(-1)^k k\pi$
4. D.
   $(-1)^{k-1}k\pi$

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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.
   Zero
2. B.
   Area of triangle
3. C.
   Perimeter of triangle
4. D.
   $a^2+b^2+c^2$

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1. A.
   $24 \times 8! \times 8!$
2. B.
   $(8!)^3$
3. C.
   $210 \times 8! \times 8!$
4. D.
   $16!$

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