`3tan^2 (x) + 5tan(x) - 4 = 0, [-pi/2,pi/2]` Use a graphing utility to approximate the solutions (to three decimal places) of the equation in the given interval.

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gsarora17 eNotes educator| Certified Educator

see the attached graph

Solutions of equation in the interval `-pi/2<=x<=pi/2` are

x `~~`  0.525 , -1.150

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