What is the exact value of pi 2
- What is the exact value of sin pi 2
- What is the exact value of cos pi 2
- What is the exact value of tan pi 2
- What is the exact value of cot pi 2
- What is the exact value of csc pi 2
- What is the exact value of sec pi 2
- What is exact value of pi 22 7
- What is the exact value of sin pi over 2
- What is the exact value of tan pi over 2
- What is the exact value of tan 3 pi over 2
- Given x=pi/3 what is the exact value of cos(2pi - x)