Prove that the equation cos2(x) 4x + = 0 has a real number solution in the interval [0
Chapter 5, Problem 5.48(choose chapter or problem)
Prove that the equation cos2(x) 4x + = 0 has a real number solution in the interval [0, 4]. (You mayassume that cos2(x) is continuous on [0, 4].)
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