Respuesta :

ronhagrid310

Answer:

x = [tex]\sqrt{7^{2} + 5^{2} - 2 .7.5.cos 42}[/tex] = ~4.689

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Answer:

x = \sqrt{7^{2} + 5^{2} - 2 .7.5.cos 42} = ~4.689

Step-by-step explanation:

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