3r+2/4=2 solve for r
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Answer:
<h2>4.5</h2>Step-by-step explanation:
Move constant to R.H.S and change its sign
Subtract the numbers
Divide both sides of the equation by 2
Calculate
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Answer: see below
<u>Step-by-step explanation:</u>
The coordinates on the Unit Circle are (cos, sin). Since we are focused on cosine, we only need to focus on the left side of the coordinate. The cosine value (left side) will be the y-value of the function y = cos x
Use the quadrangles (angles on the axes) to represent the x-values of the function y = cos x.
Quadrangles are: 0°, 90°, 180°, 270°, 360° <em>(360° = 0°)</em>
Together, the coordinates will be as follow: