- #26

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- 92

Taking you through the sketch graphs.

A normal sine function is a bump beteen 0 and pi [180degrees if you like], then a dip under the axis between pi and 2xpi.

The absolute value of the sine function is just two bumps beside each other.

Please acknowlege you understand that.

I knew that.

And i know the graph of |cos x| too but i don't know to add |sin x|+|cos x|.