Difference between revisions of "1962 IMO Problems/Problem 4"

(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}})
 
m (Prettified the cosines (\cos, not cos)
Line 1: Line 1:
 
==Problem==
 
==Problem==
Solve the equation <math>cos^2{x}+cos^2{2x}+cos^2{3x}=1</math>.
+
Solve the equation <math>\cos^2{x}+\cos^2{2x}+\cos^2{3x}=1</math>.
  
 
==Solution==
 
==Solution==

Revision as of 01:43, 8 February 2009

Problem

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

Solution

This problem needs a solution. If you have a solution for it, please help us out by adding it.

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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