The moments of inertia of a thin square plate \( A B C D \) of uniform thickness about an axis p...

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The moments of inertia of a thin square plate \( A B C D \) of uniform thickness about an axis passing through the centre \( O \) and perpendicular to the plate are
(1) \( I_{1}+I_{2} \)
(2) \( I_{3}+I_{4} \)
(3) \( I_{1}+I_{3} \)
(4) \( I_{1}+I_{2}+I_{3}+I_{4} \)
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