Trigonometry
Angle Sum and Difference, Double Angle and Half Angle Formulas
Find the exact value of:
If sinx = 5/6, find Cos (2x)

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

Solve the problem by using a venn diagram a group of students were surveyed about their taste in music.they were asked how they like three types of music: rock, country western and jazz.the results are summarized below: no one dislikes all three types of music.six like all three types of music.eleven don’t like country western.sixteen like jazz.three like country western and jazz, but not rock.six don’t like rock.eight like rock and country western.seven don’t like jazz.how many students were surveyed?

Ebert used to make $22 an hour, but got a 10% raise. how much more will he make in a 40 hour work week with raise?