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- Homework Statement
- determine the moment of inertia of the area with respect to the y-axis. with different rectangular elements, solve the problem in two ways: (a) with thickness dx, and (b) with thickness dy.

- Relevant Equations
- ## I_x=\int _{ }^{ }y^2dA ##

My solution is

now I am asked for the same result but in this form but I don't know where to start.