How do I do this? I punch the numbers into my calculator, and they don't work.
B=sin^-1 (12/7 sin42\[Degree])
If you are having trouble getting the correct answer when inputting the expression into your calculator, there might be a couple of factors to consider. First, ensure that your calculator is set to the correct angle unit mode (radians or degrees) that matches the problem.
To calculate B = sin^(-1)(12/7 sin(42°)), you can follow these steps:
1. Convert the angle from degrees to radians, as most calculators use radians for trigonometric functions. To convert 42 degrees to radians, you can multiply it by π/180.
42° * π/180 = 42π/180 radians
2. Calculate sin(42π/180) on your calculator. If your calculator is in radians mode, directly input the expression. If it is in degrees mode, make sure to switch it to radians mode before calculating.
3. Multiply the result by 12/7 and calculate 12/7 * sin(42π/180).
B = sin^(-1)(12/7 * sin(42π/180))
By following these steps and ensuring that your calculator is set up correctly, you should be able to successfully calculate the value of B.