Using your Calculator - Sine, Cosine, and Tangent Ratios

Using your Calculator - Sine, Cosine, and Tangent Ratios. Part A – Learning how to use your calculator for trigonometry. Locate the sin, cos and tan buttons on your calculator. Make sure that your calculator is on DEG (not GRAD or RAD). Usually it will say so in small print in the display. If it is not in DEG, you need to get it into DEG mode. ................
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