1962 IMO Problems/Problem 4

Revision as of 18:08, 30 December 2008 by Minsoens (talk | contribs) (New page: ==Problem== Solve the equation <math>cos^2{x}+cos^2{2x}+cos^2{3x}=1</math>. ==Solution== {{solution}} ==See Also== {{IMO box|year=1962|num-b=3|num-a=5}})
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Problem

Solve the equation $cos^2{x}+cos^2{2x}+cos^2{3x}=1$.

Solution

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See Also

1962 IMO (Problems) • Resources
Preceded by
Problem 3
1 2 3 4 5 6 Followed by
Problem 5
All IMO Problems and Solutions
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