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Problems
Contests
National and Regional Contests
Turkey Contests
National Olympiad First Round
2007 National Olympiad First Round
35
35
Part of
2007 National Olympiad First Round
Problems
(1)
Turkey NMO 2007 1st Round - P35 (Algebra)
Source:
10/5/2012
What is the third digit after the decimal point of the decimal representation of
2
+
5
3
+
2
−
5
3
\sqrt[3]{2+\sqrt 5} + \sqrt[3]{2-\sqrt 5}
3
2
+
5
+
3
2
−
5
?
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A
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8
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B
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5
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C
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3
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D
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1
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None of the above
<span class='latex-bold'>(A)</span>\ 8 \qquad<span class='latex-bold'>(B)</span>\ 5 \qquad<span class='latex-bold'>(C)</span>\ 3 \qquad<span class='latex-bold'>(D)</span>\ 1 \qquad<span class='latex-bold'>(E)</span>\ \text{None of the above}
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8
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5
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3
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D
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1
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E
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None of the above