Hi,

Can anybody help with this question please:

Compute the moment of inertia of the object in the attached figure (a thin disk missing a portion, where the angle is θ is 45) with respect to the centre point, P.

Note: ∫ 1/(cosx)^4 .dx = [sinx / 3(cosx)^3] + [2tanx/3]. The integral can be split into two integrals, one over a sector of disk one over a triangle.