Use the Quadratic Formula to Solve the Given Equation on the Interval

question 26

Multiple Choice

Use the Quadratic Formula to solve the given equation on the interval [ $0 , \frac { \pi } { 2 }$ ) ; then use a graphing utility to approximate the angle x.Round answers to three decimal places. $75 \cos ^ { 2 } x - 34 \cos x + 3 = 0$

• A)x = 1.229, 1.433
• B) x = 1.227, 1.422
• C) x = 1.233, 1.469
• D) x = 1.231, 1.451
• E) x = 1.235, 1.480

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