Question

Find the exact value of each expression, if it is defined. Express your answer in radians. (If an answer is undefined, enter undefined.)

Answer 1

To find the exact value of an expression in radians, follow these steps: list the known values, solve the equation, substitute the values, obtain the solution in radians, and check the answer.

Step-by-step explanation:

To find the exact value of an expression in radians, we need to evaluate the expression using the given values and appropriate equations. Then, check if the answer is reasonable.

1. Make a list of the known values from the problem.
2. Solve the appropriate equation or equations for the unknown quantity.
3. Substitute the known values along with their units into the equation.
4. Obtain the numerical solution with units in radians.
5. Check if the answer is reasonable and makes sense.