y 1m 2 m 1m X 2 m Find the centroid coordinate Xc, of the cross section, with respect to x-axis. Find the the second moment of area, Ix, of the cross section, with respect to the x-axis. Find the the second moment of area, Ixn, of the cross section, with respect to the x-neutral-axis (the x-axis that passes through the centroid).

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.