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Find cos A

 

[asy]
size(200);

pair A,B,C;

A=origin;
B=(4,0);
C=3dir(25);

draw(A--B--C--cycle);

dot("$A$",A,SW);
dot("$B$",B,SE);
dot("$C$",C,N);

label("$4$",A--B,S);
label("$3$",A--C,NW);
label("$2$",C--B,NE);
[/asy]

 Jun 22, 2022
 #1
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cos A = 6/19.

 Jun 22, 2022

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