Question: If ||X|| = 3, ||F|| = 1, and XF= -2, compute: (a) || 3X - 5F|| (b) ||2X + 7Y|| (c) (3X-F)(2F-X) (d) (X-2F)(3X +

If ||X|| = 3, ||F|| = 1, and X∙F= -2, compute:
(a) || 3X - 5F||
(b) ||2X + 7Y||
(c) (3X-F)∙(2F-X)
(d) (X-2F)∙(3X + 5F)

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