7 trigonometric proportions to the calculator There are many different units in which an angle is measured, with degrees being one of the options. Before using the calculator to determine the trigonometric ratios of angles measured in degrees, you should ensure that the calculator is set to use the appropriate units. Make sure it is your calculator is making use of the correct system of angle measurement prior to using trigonometric ratios. This calculator is set to use degrees when the indicator for display is shown towards the front of the screen. If you see the display indicator as well it is, then you're calculator has been set up to utilize different measurements for measuring angles.Figure 9 The degrees setting To change the settings of the calculator so that it works in degrees use the key sequence (SETUP) (Deg). To determine the sine cosine, tangent or sine an angle, press , or key and enter the length of your angle. It is important to note that , and ...
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