Christmas MT's answer to Lim jin joon's Junior College 2 H2 Maths question.

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Christmas MT
Christmas Mt's answer
3275 answers (A Helpful Person)
1st
See solution
Lim jin joon
Lim Jin Joon
7 years ago
I thought supposed to show line3
Parallell to b-(ab/!a!^2)a
Lim jin joon
Lim Jin Joon
7 years ago
Cannot use unless u show first
Lim jin joon
Lim Jin Joon
7 years ago
Sorry if i am wrong
Christmas MT
Christmas MT
7 years ago
The question is just about showing that they are parallel.

If a question say show that vector k and vector q are parallel, you just need to take the dot product and show that it is equal to zero.

Unless the question ask you to prove the vector first and hence show that they are parallel, it is sufficient to just show that they are parallel
Lim jin joon
Lim Jin Joon
7 years ago
Did not show as requested by qns .
Lim jin joon
Lim Jin Joon
7 years ago
First part a not given but u are ask to show.
Lim jin joon
Lim Jin Joon
7 years ago
2nd patt both a and b given u ask to find