I need help for part B
#Vectors
short ridge
errant bayBOT
I need help for part B
- Ask your question and show the work you've done so far. If you've posted a screenshot of a question, specify which part you need help with.
- Wait patiently for a helper to come along.
- Once someone helps you, say thank you and close the thread with:
+close - Feel free to nominate the person for helper of the week in #helper-nominations
- Do not ping the mods, unless someone is breaking the rules.
- If you're happy with the help you got here, and the server overall, you can contribute financially as well:
blissful snow
Maybe for now you can start by finding the resultant vector by adding the position vectors.
short ridge
thx for the responses everyone
short ridge
use dot product
OT.PQ=|OT||PQ|cos45
what i did:
cos45= <4,12> . <x,2> |<4,12>| * |<x,2>|
short ridge
but idk what to do next
like how to simplify non calc
what i did:
found magnitude of 4,12
which was = to 160
magniude of x,2
=x^2 +4
unreal garnet
but idk what to do next
simplify it maybe by squaring on both sides and just moving things
short ridge
simplify it maybe by squaring on both sides and just moving things
we had
4x+24 / ( 4*sqrt10) (x^2 + 4) =sqrt2 / 2
after squaring
=
(4x+24)^2 / (4^2*10) (x^2+4)^2 = 1/2
unreal garnet
hm