Find and sketch or graph the image of the given region under the mapping w = cos

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Find and sketch or graph the image of the given region under the mapping w = cos z.

0 < x < π/2, 0 < y < 2 directly and from Prob. 11

Data from Prob. 11

Find and sketch or graph the image of the given region under w = sin z.

0 < x < π/2, 0 < y < 2

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