Question

If the cosine of an angle θ is 12 , what is θ ? You may assume that 0°≤θ≤180° .

Answer 1

The cosine function gives values between -1 and 1 for real angles. Since you mentioned that the cosine of an angle \(\theta\) is 12, which is outside this range, it indicates that there is no angle \(\theta\) within the range of \(0°\) to \(180°\) for which \(\cos(\theta) = 12\).

Therefore, there is no solution for \(\theta\) in this case.