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junior college 1 | H2 Maths
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angelina
Angelina

junior college 1 chevron_right H2 Maths chevron_right Singapore

I need help

Date Posted: 4 months ago
Views: 32

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Tan Y J
Tan Y J's answer
14 answers (A Helpful Person)
1st
I don't know first part. I am very sorry. I tend to be careless too.
Tan Y J
Tan Y J
4 months ago
Poster here

I made 2 mistakes.
Constant shouldn't have the mod sign. (misconception)

And

When a x b = 0, it means either or both vectors are zero vectors or they are parallel. Use that to show qns 1.