Solve for θ in the equation cos θ = -0.334 when 0º < θ < 180º. Round your answer to the nearest tenth of a degree.
1 answer:
Answer:
110.1°
Step-by-step explanation:
Use the inverse cosine function (arccos or cos⁻¹).
... cos(θ) = -0.344
... θ = arccos(-0.344) = 110.1°
_____
The range of the arcos( ) function is 0 – 180°, so no adjustment of the angle is necessary. (Make sure your calculator is in <em>degrees</em> mode.)
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