SOLUTION: Find all angles θ between 0° and 180° satisfying the given equation. Round your answer to one decimal place. (Enter your answers as a comma-separated list.) cos(θ) = &#8

Algebra ->  Trigonometry-basics -> SOLUTION: Find all angles θ between 0° and 180° satisfying the given equation. Round your answer to one decimal place. (Enter your answers as a comma-separated list.) cos(θ) = &#8      Log On


   

Question 1125504: Find all angles θ between 0° and 180° satisfying the given equation. Round your answer to one decimal place. (Enter your answers as a comma-separated list.)
cos(θ) = − 2/5
Found 2 solutions by MathLover1, ikleyn:
Answer by MathLover1(20850) About Me  (Show Source):
Answer by ikleyn(52794) About Me  (Show Source):
You can put this solution on YOUR website!
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The correct answer is THIS :


    the given equation has only one solution  theta = 113.6°  between  0°  and  180°.