For the given value of t determine the reference angle t and
For the given value of t determine the reference angle t\' and the exact values of sin t and cos t. Do not use a calculator.
t = 7/6
| t\' | = | ( in radians) |
| sin t | = | |
| cos t | = |
Solution
t = 7/6
reference angle t\'=/6 in quadrant III in which sin<0, cos<0
sin t=sin(/6)=-1/2
cos t=cos(/6)=-3/2
