Http://prntscr.com/f3mxcd
That should be your points graphed
Hope it helps
We can proceed in solving the problem since all information are given such as 2*4*5costheta.
we have a=4, b=5, and C=theta
let us solve for "c" using Pythagorean
c²=a²+b²
c²=4²+5²
c=6.4
Solving for theta or C
c²=a²+b²-2abcosC
6.4²=4²+5²-2*4*5*cosC
C=90
33.3 repeating
This can be simply found out by dividing 3.75 from 1.25
1.25 / 3.75 = .33
We dont have to do any cmputing, because multiplying by 0 is always 0. Its mean that no matter what are the different numbers, if we multiply it by 0, we get 0
The result is 0
