Question 1193960
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Find many similar solved problems of this type in the lesson

&nbsp;&nbsp;&nbsp;&nbsp;- <A HREF=https://www.algebra.com/algebra/homework/Trigonometry-basics/Evaluating-trigonometric-expressions.lesson>Evaluating trigonometric expressions</A> 

in this site.


Consider them as your TEMPLATES and solve your problem in the same way.


Learn the subject and the solution method from there.