These angles are given in degrees. Calculate the corresponding angles in radians.
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Here the angles on the unit cicle have been given. Calculate the corresponding angles in whole degrees.
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From now on (unless mentioned differently) we will assume that the variable in is expressed in radians.
Look at the graph of on the interval .
Compute the exact values of and . Explain the difference.
Compute the exact values of and . Explain the correspondence.
Use the graph to show that .
Use the graph to show that .
You cannot use a graph to prove anything. Using a figure in the unit circle you can. Now prove the two properties above.
Given is .
Use a unit circle to denote all values of with satisfying this equation.
Write down all values of satisfying the equation. Round your answers to three decimals.
Given is .
Use a unit circle to denote all values of with satisfying this equation.
Write down all values of satisfying the equation. Give exact values.