Given three vectors p, q and r such that r and pare parallel to each other...
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Given three vectors p, q and r such that r and pare parallel to each other and rx q = - +3j + 4k. Express (p+ 2q + 2r) (-p-2q) ini, j and k. [3 marks] - The position vectors are given by OR = aj + 7k, OS = 21+1+2k and OT=41+ Bj+5k where 0 is the origin anda and are constants. i. Find the values of a and such that SR x ST = 20i + 16j - 8k. ii. Hence, find the value of ZRST. [4 marks] [3 marks] Given three vectors p, q and r such that r and pare parallel to each other and rx q = - +3j + 4k. Express (p+ 2q + 2r) (-p-2q) ini, j and k. [3 marks] - The position vectors are given by OR = aj + 7k, OS = 21+1+2k and OT=41+ Bj+5k where 0 is the origin anda and are constants. i. Find the values of a and such that SR x ST = 20i + 16j - 8k. ii. Hence, find the value of ZRST. [4 marks] [3 marks]
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i First we need to simplify the expression p2q2r x p2q p2q2r x p2q p x p2q2r 2q x p2q2r 2r x p2q2r E... View the full answer
Related Book For
Cambridge IGCSE And O Level Additional Mathematics Coursebook
ISBN: 9781108411660
2nd Edition
Authors: Sue Pemberton
Posted Date:
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