ericfin1967 ericfin1967

08-04-2018
Mathematics

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Use the Law of Cosines to find the value of cos theta.

A) -0.72
B) 0.29
C) 0.78
D) 0.38

Use the Law of Cosines to find the value of cos theta A 072 B 029 C 078 D 038 class=

Respuesta :

08-04-2018

Cos(theta)= (10^2 + 15.2^2 + 14.7^2)/ 2 x 10 x 15.2
= (100+231.04+216.09)/304
=547.13/304
=1.7998

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