3. Find the centroid (, y) of the region bounded by y = 2 cos(3x) and y = 2 sin(3x) from z = 0 to z = /12. You may use the fact that the region has area √2-1. Do the same for the region bounded by y = x2 +3 and y = 21-2², which has area 72.

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A: Since you have posted multiple questions therefore we will answer the first one for you. If you want…