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Draw the graph of y=cos^(-1)(cos x)....

Draw the graph of `y=cos^(-1)(cos x)`.

Text Solution

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`y=cos^(-1)(cos x)`
`rArr" "cos y = cos x`
`rArr" "y=enpi+-x, n in Z`
Now `y in [0, pi]` we have the following table for values of x and y.

From the above information, we can plot graph of `y = cos^(-1)(cos x)` as shown in the follwing figure.
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