Vincent Wan's answer to WL's Junior College 1 H2 Maths question.
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Properties of area of triangle = 0.5 x [cross product of adjacent vector]
Properties of cross product:
• a x a = 0
• a x (b + c) = (a x b) + ( a x c)
Where a,b,c are vectors.
Properties of cross product:
• a x a = 0
• a x (b + c) = (a x b) + ( a x c)
Where a,b,c are vectors.
Date Posted:
6 years ago
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