Respuesta :

Answer:

[tex]y^2=9^2+19^2-2(9)(19)cos(41)[/tex]

Step-by-step explanation

That is the one that is correct.

In the picture attached, the angle is in the middle of side C, so the ecuation should be,

[tex]c^2=a^2+b^2-2(a)(c)cos()[/tex]

Ver imagen davidgomez761

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