So my teacher is famously bad at explaining things/teaching so I can never retain anything we're 'taught'. She moves too fast in the course for me to actually be able to commit anything to memory. So here we are at the end of the semester and lo and behold the semester exam has things we were never even taught. Sure they're similar but the functions are completely different than my notes and homework. This is very frustrating to me because I've been working my butt off to get an A this whole year and she's made it very difficult. Please help me to understand these questions, I appreciate any help.

1) Give the product. Round answers to the nearest hundreth.

(2sq3 cis (pi/6)) (3 sqrt5 cis (4pi/3 ))



2)The terminal ray of angle passes through the point (6, -2). Give the value of csc .



3)The first term in a geometric sequence is 11. The sixth term of the geometric sequence is 2673. What is the common ratio for the sequence?



4) A Ferris wheel has a diameter of 64 feet. At its low point, a rider is 4 feet above the ground. It takes 78 seconds for a rider to complete a revolution.

The amplitude of the ride is____

The period of the ride is ____