Question: Thanks for the help :) explain how cos(x) = x2 + r + 1 has a solution on the interval (-7, -) you have to

 Thanks for the help :) explain how cos(x) = x2 +

Thanks for the help :)

r + 1 has a solution on the interval (-7, -) you

explain how cos(x) = x2 + r + 1 has a solution on the interval (-7, -) you have to cite a theorem to show this

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