math / science
posted by Clarissa on .
find the vector with all of the following properties:
angle of 45 degrees with positive x-axis
angle of 75 with positive y-axis
positive k component
r= 10cos45 i + 10 cos75 j + Z k
but you know you can find Z by this
10^2=10^2*cos^2 45 + 10^2 cos^2 75 + Z^2
Z= 10 sqrt (1-.5-.067)
check all that.
thank you so much
so then is the vector .5i + .067j + 6.58k??