Respuesta :

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A = 4
B = 3
C = 2

We need to find cos(C)

[tex]4 = 16 + 9 - 2(2)(3)(cos(C)) [/tex]
[tex]-21 = -12 * cos(C)[/tex]
[tex]cos (C)=  1.75[/tex]

The answer is [tex]2 * 3 * 4 * 1.75 [/tex] = 42