Ask Singapore Homework?

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



Question

junior college 2 | H2 Maths
2 Answers Below

Anyone can contribute an answer, even non-tutors.

Answer This Question
Alexia Hsu
Alexia Hsu

junior college 2 chevron_right H2 Maths chevron_right Singapore

hi! may i get help for this ~

Date Posted: 3 years ago
Views: 431
J
J
3 years ago
a × b = c × a

a × b = - a × c

a × b + a × c = 0

a × (b + c) = 0

Since a × (b + c) = 0,

a is parallel to (b + c)


so a = k(b + c), k is a real constant.
Alexia Hsu
Alexia Hsu
3 years ago
thank you! apologies should have specified.. needed help for (b) actually! but your answer for a has stilled helped!
J
J
3 years ago
Yes, working on it. Will post it later
Alexia Hsu
Alexia Hsu
3 years ago
thank u so much!
J
J
3 years ago
Posted.

By the way, if you want to elaborate further, you might want to add that the straight line passes through the point (0,0,2) and is parallel to the vector (1 0 -3)

See 2 Answers

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
PhysChemTutor
Physchemtutor's answer
1551 answers (A Helpful Person)
1st
Alexia Hsu
Alexia Hsu
3 years ago
thank u!!
done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
J
J's answer
1024 answers (A Helpful Person)
Here you go!
Alexia Hsu
Alexia Hsu
3 years ago
thank you!!!