Cos 660 degrees is the value of cosine trigonometric function for an angle equal to 660 degrees. The value of cos 660° is 1/2 or 0.5. How to Find the Value of Cos 660 Degrees?

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. The exact value of cos(60) cos (60) is 1 2 1 2. The result can be shown in multiple forms.

What is the value of cos (660) ?

The cos of 660 degrees is 0.5, the same as cos of 660 degrees in radians. To obtain 660 degrees in radian multiply 660° by $\pi$ / 180° = 11/3 $\pi$. Cos 660degrees = cos (11/3 × $\pi)$.

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Erin from SVSU Micro Math helps you evaluate cosine of an angle by using the unit circle. The angle is given in degree measure. Problem: Find cos (660°) Level: intermediate algebra/precalculus...

Jan 31, 2025 · To find the exact value of cos 660°, we can use the periodicity property of the cosine function. The cosine function has a period of 360°, which means that the cosine of any angle is the same as the cosine of that angle plus or minus any multiple of 360°. First, notice that 660° is greater than 360°.

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Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. The exact value of cos(60) cos ( 60) is 1 2 1 2. The result can be shown in multiple forms.

The exact value of cos(60) cos (60) is 1 2 1 2. The result can be shown in multiple forms. Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.