An equation is given. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.)
sin(θ/2) − 1 = 0
(a) Find all solutions of the equation.
(b) Find the solutions in the interval [0, 2π).

Geometry answer picture question pls . reason and statements

Aclassroom is made up of 11 boys and 14 girls. the teacher has four main classroom responsibilities that she wants to hand out to four different students (one for each of the four students). if the teacher chooses 4 of the students at random, then what is the probability that the four students chosen to complete the responsibilities will be all boys?

The value of cos 30° is the same as which of the following?