What is the period of the function F(x)=1/2csc(6x-1)
A:pi/3
B:6pi
C:pi/2
D:2pi

How do you use the elimination method for this question? explain, because i really want to understand!

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

What is the absolute value of the complex number -4-sqrt2i