How do you find the exact value for sin (pi/4)? | Socratic
How do you find the value of cos(pi/4)? | Socratic
Trigonometry
SOLVED: Evaluate the expression 3(1)(6 2(9)): In the case above you need to enter a number; since we're testing whether you can multiply out these numbers. (You can use a calculator if
The value of `sin(pi/18)+sin(pi/9)+sin((2pi)/9)+sin((5pi)/18)` is - YouTube
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