Logarithms & Binary Numbers · NDA previous year questions

2010 3 questions

1. Q152010 · 22 Aug 2010

   What is the binary number equivalent of the decimal number 32.25?

   1. A.100010.10
   2. B.100000.10
   3. C.100010.01
   4. D.100000.01
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   Answer: D

2. Q332010 · 18 Apr 2010

   What is the equivalent binary number of the decimal number 13.625?

   1. A.1101.111
   2. B.1111.101
   3. C.1101.101
   4. D.1111.111
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   Answer: C

3. Q342010 · 18 Apr 2010

   What is the value of ${\left(\frac{i+\sqrt{3}}{-i+\sqrt{3}}\right)}^{200}+{\left(\frac{i-\sqrt{3}}{i+\sqrt{3}}\right)}^{200}+1$?

   1. A.$-1$
   2. B.0
   3. C.$i$
   4. D.2
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   Answer: B