Need some with these last few problems you for your time and
1. for what x-value(s) does sin(x) = -1?
2. what is the y-value for f(x) = cos(x) when x = -90°?
3. what is the y-value for f(x) = tan(x) when x = -45°?
4. find the value of e. ( left image )
5. find the value of b. ( right image )