Question

use law of cosines to find cos theta please help pic in comments!

Answer 1

@dan815

Answer 2

using law of cosines \[cos \theta = \frac{5.8^2 + 10.5^2 - 10.9^2}{2\times5.8\times 10.5}\]

Answer 3

\[(10.9)^{2}=(5.8)^{2}+(10.5)^{2}-2*5.8*10.5* \cos \theta\]

Answer 4

kk let me see what i get

Answer 5

cos theta= 0.21