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junior college 2 | H2 Maths
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Alexia Hsu
Alexia Hsu

junior college 2 chevron_right H2 Maths chevron_right Singapore

hi! may i get help for this ~

Date Posted: 2 years ago
Views: 402
J
J
2 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
2 years ago
thank you! apologies should have specified.. needed help for (b) actually! but your answer for a has stilled helped!
J
J
2 years ago
Yes, working on it. Will post it later
Alexia Hsu
Alexia Hsu
2 years ago
thank u so much!
J
J
2 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)

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PhysChemTutor
Physchemtutor's answer
1551 answers (A Helpful Person)
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Alexia Hsu
Alexia Hsu
2 years ago
thank u!!
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J
J's answer
1022 answers (A Helpful Person)
Here you go!
Alexia Hsu
Alexia Hsu
2 years ago
thank you!!!