Algebra Examples

Evaluate 3sin(-(3pi)/2)
3sin(-3π2)
Step 1
Add full rotations of 2π until the angle is greater than or equal to 0 and less than 2π.
3sin(π2)
Step 2
The exact value of sin(π2) is 1.
31
Step 3
Multiply 3 by 1.
3
 [x2  12  π  xdx ]