00154 .I e: C} B coursehero.com TEMASEK JUNIOR COLLEGE 2012 JC2 H2 MATHEMATICS (9740) VECTORS Tutorial 2 Scalar Product of Vectors 1 The position vectors of A, B and C are 4i 2j + 6k , i + j and 2i+ j k respectively. Calculate AABC. [Solution] ' ' - I J . I - - . A . 2 Relative to an origin 0, the points C and D have position vectors 7i + 3j + 2k and mi +aj + bk respectively, where a and b are constants. (i) Given that the line CD is parallel toi + 3 j, nd the values of a and b. (ii) Find the position vector of the point Q on the line CD such that the angle between 0Q and OCis equal to the angle between 0Q and 0D. [Solution] D O . ' r . o ' b .. J 1 0 Ask 5 Free Questions