Using graphical method, obtain the solution of Cos x = 2x

Cercxtrova asked Feb 13, 2023

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Cercxtrova asked Feb 13, 2023

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23 votes

The solution of cosx=2x is given by the graph shown below:

As seen from the graph, the function has two solutions.

(0,0) and (0.450183,0.9003672)

Derek J answered Feb 17, 2023

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