SOLUTION: Given TAN (x) =1.1273 determine COS(x) to four decimal places

Question 1100593: Given TAN (x) =1.1273 determine COS(x) to four decimal places
Answer by greenestamps(13203) (Show Source): You can put this solution on YOUR website!

You can't perform this kind of calculation with pencil and paper; you need a calculator or some other mathematical tool.

If you have a good graphing calculator (which you should have, if you are studying trigonometry), then you can find the value directly. With my TI83 calculator, I get the answer by entering "cos(tan^-1(1.1273))" ("cosine of inverse tangent of 1.1273").

If you don't have a calculator that will do that kind of calculation, or if you want to practice other trig skills, you can do this:

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