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trig angle relations
trig angle relationships, adding and subtracting 180 and 90
Question | Answer |
---|---|
sin(x+180) | -sinx |
cos(x+180) | -cosx |
tan(x+180) | tanx |
sin(180-x) | sinx |
cos(180-x) | -cosx |
tan(180-x) | -tanx |
sin(x+90) | cosx |
cos(x+90) | -sinx |
tan(x+90) | -cotx |
sin(90-x) | cosx |
cos(90-x) | sinx |
tan(90-x) | cotx |
sin(-x) | -sinx |
cos(-x) | cosx |
tan(-x) | -tanx |
sin(270-x) | -cosx |
cos(270-x) | -sinx |
tan(270-x) | cotx |
sin(x+270) | -cosx |
cos(x+270) | sinx |
tan(x+270) | -cotx |