Day 172: CDS Maths

1. A.
   $(x + y + z)^3$
2. B.
   $3(x + y)(y + z)(z + x)$
3. C.
   $24xyz$
4. D.
   $-24xyz$

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1. A.
   $a (\sqrt{2} - 1)$
2. B.
   $a (\sqrt{3} - 1)$
3. C.
   $\frac{a}{\sqrt{2} + 2}$
4. D.
   $\frac{a}{3}$

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1. A.
   40,00,000 litres
2. B.
   4,00,000 litres
3. C.
   40,000 litres
4. D.
   4,000 litres

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1. A.
   $90^\circ$
2. B.
   $135^\circ$
3. C.
   $180^\circ$
4. D.
   $270^\circ$

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1. A.
   I only
2. B.
   II only
3. C.
   Both I and II
4. D.
   Neither I nor II

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