Given tan theta=4/3 and pi < theta< 3 pi/2 degree find cos 2 theta

Multiplying an even number of negative numbers gives an answer that is choose from:

High schoolmathematics 5 points keith is the leading goal scorer for a team in an ice hockey league. last season, he scored 42 goals in 82 games. assuming he scores goals at a constant rate, what is the slope of the line that represents this relationship if the number of games is along the x-axis and the number of goals is along the y-axis?

What numbers are included in the set of integers? what numbers are not included?