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You are not logged in. #1 20060306 07:46:39
Circular Functions!!!I am stuck with this one...can anyone please show me how to do this step by step please... Last edited by katy (20060306 07:48:41) #3 20060306 10:06:50
Re: Circular Functions!!!ok theres the frequently discussed 30, 60, 90 degree triangle. You remember that. This shows us that the sine of 30 = 1/2. Also the sine of 150 = 1/2, and of course, you can always add increments of 360 to get the same sine. A logarithm is just a misspelled algorithm. #4 20060306 10:44:21
Re: Circular Functions!!!Here, maybe this can help you. Remember the 30 60 90 degree triangle. These can be used to find the sines, cosines and tangents of 30, 60, 120, 150, 210, 240, 300, and 330. Look at the diagram. Just remember that the large angle that isn't the 90 degree angle, is the 60 degree angle, and the short one is the 30 degree angle. Using this diagram, you can easily find where the angles stand at. For instance, in the left diagram, the angle at the top left (the one pointing up and to the right) is 60 degree's before the 180 degree line, therefore its angle is 180  60 or 120. The sine = opposite over hypotenuse, or vertical height over hypotenuse. So the sine of 120 = sqrt (3) / 2. Last edited by mikau (20060306 10:45:05) A logarithm is just a misspelled algorithm. 