`sec^2 (x) + 0.5tan(x) - 1 = 0` Use a graphing utility to approximate the solutions (to three decimal places) of the equation in the interval `0,2pi)`.

Textbook Question

Chapter 5, 5.3 - Problem 55 - Precalculus (3rd Edition, Ron Larson).
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gsarora17 | (Level 2) Associate Educator

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see the attached graph.

Solutions in the given interval are,

x `~~`  0 , 2.700 , 3.100(pi) , 5.800 , 6.200(2pi)

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scisser | (Level 3) Honors

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See attached graph

x ≈ 0

x ≈ 2.678

x ≈ 3.141 `(pi)`

x ≈ 5.820

x ≈ 6.28 `(2pi)`

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