Question 1044317
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Determine the approximate measures of the angles from 0 to 360 for each of the following:

<pre>
a)   cos(x) = 0.2079  --->  x = arccos(0.2079)

b)   tan(x) = 0.2126  --->  x = arctan(0.2126)

c)   sin(x) = 0.5446  --->  x = arcsin(0.5446)
</pre>

Use your calculator, or computer, or trigonometric tables.
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<U>comment from student</U>: we cant use calculators though, we had to draw it out.



<U>My response</U>. Ogo! Can not recall where I saw it.


<pre>
Then use the series for inverse trigonometric functions

   ( <A HREF=http://www.mathportal.org/formulas/pdf/taylor-series-formulas.pdf>http://www.mathportal.org/formulas/pdf/taylor-series-formulas.pdf</A> 

   http://www.mathportal.org/formulas/pdf/taylor-series-formulas.pdf )
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