Trigonometric Ratios Of Special Angles Using Hand Technique Youtube How to remember special angles trick using your hands | trigonometric ratiossin 30, cos 30, tan 30, sin 60, cos 60, tan 60, sin 45, cos 45, tan 45, sin 0, co. In trigonometry, 0°, 30°, 45°, 60° and 90° are called as special angles and they always lie in the first quadrant. these special angles 0°, 30°, 45° and 60°.
How To Memorize Trigonometric Functions Using Fingers Through this method, you can find the sine and cosine functions of 5 specific angles: 0°,30°,45°,60° and 90°. for this hack, you will only have to memorize one thing, which is the square root of x divided by 2, where x is the number of fingers to the right (regardless for sine or cosine!) of the finger you closed. let’s see how it’s done!. Find out how to calculate sin; cos and tan 0; 30; 45; 60 and 90 degrees on your fingers. if this video is on trigonometry special angles, using your fingers. find out how to calculate sin; cos. How to use the trig ratios of special angles to find exact values of expressions involving sine, cosine and tangent values of 0, 30, 45, 60 and 90 degrees? example: determine the exact values of each of the following: a) sin30°tan45° tan30°sin60°. b) cos30°sin45° sin30°tan30°. show video lesson. Using your fingers. another method uses your left hand to essentially do the same thing. with your palm facing you, count off the basic reference angles, starting with your thumb: 0°, 30°, 45°, 60°, and 90°. to find a trig value, you'll lower the finger corresponding to that angle, keeping your palm facing you.
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