Prelims and A Levels are less than half a year away, but there is still time for improvement! The earlier your child starts revising, the more chance for improvement. Do not wait for one month before exams, that may be too late already.
Foot of Perpendicular is a hot topic for H2 Prelims and A Levels. It comes out almost every year.
There are two versions of Foot of Perpendicular, from point to line, and from point to plane. However, the two are highly similar, and the following articles will teach how to understand and remember them.
http://mathtuition88.com/2013/05/09/h2- ... endicular/
http://mathtuition88.com/2013/05/09/h2- ... e-part-ii/
Sure Come out for Prelims / A Levels: Vectors [H2 Math]
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