4Q Quiz: Evaluating Inverse Trig Functions of Special Ratios

Enter the EXACT VALUE of the expression shown. (If you type "pi", you will get the π symbol).
Enter the EXACT VALUE of the expression shown. (If you type "pi", you will get the π symbol).
Enter the EXACT VALUE of the expression shown. (If you type "pi", you will get the π symbol).
Enter the EXACT VALUE of the expression shown. (If you type "pi", you will get the π symbol).
– Tim Brzezinski

Information: 4Q Quiz: Evaluating Inverse Trig Functions of Special Ratios