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23. Given = [1, 7, 9] and,a) Find the angle between and w. 13 Marks]-[-2,...

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Calculus

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23. Given = [1, 7, 9] and,a) Find the angle between and w. 13 Marks]-[-2, 5, -3] and w=[4, -6, 8].b) Are the vectors i and i and w coplanar? Show your answer algebraically. [3 Marks]

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Transcribed Image Text

23. Given = [1, 7, 9] and,a) Find the angle between and w. 13 Marks]-[-2, 5, -3] and w=[4, -6, 8].b) Are the vectors i and i and w coplanar? Show your answer algebraically. [3 Marks]

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