Cos 120 degrees is the value of cosine trigonometric function for an angle equal to 120 degrees. Understand methods to find the value of cos 120 degrees with examples and FAQs.

The value of cos 120 degree is -1/2. ... How to find the value of cos 120° degree? Cosine is one of the most important functions of trigonometry which deals with the relationship between the …

Question 197033: what is the exact value of cos120 degreees? Answer by anantha(86) (Show Source):

Answer to: What is the exact value of cos 120? By signing up, you'll get thousands of step-by-step solutions to your homework questions. You can...

You can put this solution on YOUR website! Find the exact value of the expression cos120(degrees)cos30(degrees)+sin120(degrees)sin30(degrees)

Answer to: Find the value of cos 120. By signing up, you'll get thousands of step-by-step solutions to your homework questions.

You can put this solution on YOUR website! Hi there, Cos 120 = -cos60 = -1/2 Hope this helps

You can put this solution on YOUR website! Cos120°=-1/2----Yes. Reference angle is 180-120 = 60 Degrees cos(60) = 1/2

The exact values of the six trig functions of angle 120 are sin 120 = √3/2, cos120 = -1/2, tan120 = -tan60 = -√3, cosec 120 = 2/√3, sec 120 = -2, cot 120 = -1/√3 Explore math program Math …

Find the power. Write the answer in rectangular form. \left [ 2\left ( \cos120^{\circ} +...