Using a beneficial Calculator locate Sine and you will Cosine
At \(t=\dfrac< ?><3>\) (60°), the \((x,y)\) coordinates for the point on a circle of radius \(1\) at an angle of \(60°\) are \(\left(\dfrac<1><2>,\dfrac< \sqrt<3>><2>\right)\), so we can find the sine and cosine. We have now found the cosine and sine values for all of the most commonly encountered angles in …