Pis true and g is true, then

Express the following as a function of a single angle, cos(60) cos(-20) - sin(60) sin(-20)

Which of the following is the missing term, a2, of the geometric sequence in which a1=2 and a3=200

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3