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24-05-2023
Mathematics

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Question 3 Let a = [3,2,0] =3i+2j; b = [-4,6,0] = -4i+6j, c= [5, -1,8] = 5i-j+8k, d= [0,0,4] = 4k. Find: (i) (a + b) + c, a + (b + c) (ii) 3c6d, 3 (c - 2d) (iii) /a-3c, 9 (-a-c) 3 (iv) 4a + 3b, -4a -

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