Ask Singapore Homework?

Upload a photo of a Singapore homework and someone will email you the solution for free.



Ask ManyTutors

Question

junior college 2 | H2 Maths
One Answer Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Cell tyh
Cell Tyh

junior college 2 chevron_right H2 Maths chevron_right Singapore

Pls help!!

Date Posted: 4 years ago
Views: 249
add a comment

See 1 Answer

Ask ManyTutors
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Alice
Alice's answer
2 answers (A Helpful Person)
1st
-
Cell tyh
Cell Tyh
4 years ago
Why is part i =0? How do you know it is perpendicular?
Alice
Alice
4 years ago
Because from the cross product of (axb) and b, u get a vector that is perpendicular to both (axb) and b (given by the vector n in the formula for cross product)