Answers

2015-01-29T19:37:20+08:00
You would be needing a scientific calculator to answer that But if you are required not to use one, then that is the final answer
0
2015-01-29T19:45:08+08:00
You would need scientific calculator
0
you do not need a calculator

sin(105) = sin(60+45) = sin60cos45 + sin45cos60 = (sqrt3)/2 * (sqrt2)/2 + (1/2) * (sqrt2)/2 = (sqrt6)/4 + (sqrt2)/4 = (sqrt6 + sqrt2)/4