-2(csc^2 θ - cot^2 θ) - 1 =

-2

-3

-1

Ineed to learn how to solve this problem

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?

What percent of the circle below is shaded?