find the following: sin(15pi/4) cos(20pi/3) tan(-17pi/3) sin(-13pi/2) cos(19pi) Thanks for your help
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Originally Posted by tim_mannire find the following: sin(15pi/4) cos(20pi/3) tan(-17pi/3) sin(-13pi/2) cos(19pi) Thanks for your help this thing true for all trigonometry cos, tan, sec all true for sin and cos can you prove what I wrote you should know that,
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