Asked by jenni
If cos 20=m determine the values of the following in terms of m. (a) cos(-200) (b)sin 250 (c)sin 20 thanks
Answers
Answered by
Steve
can you not use the same name for all your posts?
cos(-200) = cos(200) = -cos(20) = -m
work with the other angles in a similar way. Draw triangles on the axes to help see the transformation formulas.
cos(-200) = cos(200) = -cos(20) = -m
work with the other angles in a similar way. Draw triangles on the axes to help see the transformation formulas.
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