Find the angles to the nearest 1/2 degree, using the functions given.
a. Sin θ = .2713
b. Cos θ = .7630
c. Tan θ = .2773
If you had trouble getting these values, check your arithmetic.
Seek help from the
instructor if necessary.
57b. And the function for the angles given.
Sin θ = _____
Cos θ = _____
Tan θ = _____
a. Sin θ = .7071
b. Cos θ = .7009
c. Tan θ = .2962
Trying to memorize formulas such as the trig functions can be difficult. However, you are
required to know them. As a memory "crutch," here is a saying that you may use to help
you remember them: "Oscar Had A Heap Of Apples." Take the underlined capital
letters, and group them vertically as in
the block to the right.
Each ratio is
equal to a trig function. The functions
are listed in the order in which you
learned them. Complete the formulas in
the block above by writing the correct
function in each blank.