If vector v lies in the second quadrant, makes an angle of 3pi/4 with the positive x axis and v = 6, find v in the component form

Question

amistre64 · Answer

|v| = 6 perhaps?

amistre64 · Answer

pi/4 is 45 degrees

amistre64 · Answer

6 = sqrt(2)
s =    1

s = sqrt(2)/6  is the ratio of the side to hypotenuse then right?

amistre64 · Answer

s = 6/sqrt(2)   :)  had my ups and downs corssed

anonymous · Answer

sorry hang on....it's 3pi/4

amistre64 · Answer

|dw:1323714616322:dw|

amistre64 · Answer

its still a 45; only the i part is - and the j part is +

anonymous · Answer

ALRIGH....lemme solve real quick...will u verify it for me?

amistre64 · Answer

sure, if i can remember what it is im doing ;)

anonymous · Answer

okay...so i get < -6/sqrt(2), 6/sqrt(2) >

amistre64 · Answer

good, and that can be simplified; to <-3sqrt(2),3sqrt(2)> right?

anonymous · Answer

awesomeness...thx so much