If ů = (i) × (j) and i = (j) x (-k), find the length and direction of ủ ×ỉ and i x ủ. Length of u x ủ is Direction of ủ x ở is (If u x u does not have a direction, enter "none".) Length of i x ủ is Direction of v x ủ is (If i xủ does not have a direction, enter "none".)
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