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Line 25:
Line 25: − That would be a full period of the graph - as 2π [[radians]] is equivalent to one circle. The graph continues in that pattern.+ +
misleading - the graph shows more than a full period
|[[Image:Cosine-pi.jpg]]
|[[Image:Cosine-pi.jpg]]
|}
|}
2π [[radians]] is equivalent to one circle. The graph continues in that pattern.
==Relation to secant==
==Relation to secant==