Prove that tan 2 thita minus tan thita equals tan thita sec 2 thita

Ben wants to play a carnival game that costs $2. in his pocket he has 5 red tickets worth 35 cents each, and 15 blue tickets worth 10 cents each. which of the following systems of inequalities correctly represents the constraints on the variables in this problem? let represent the red tickets and b represent the blue tickets.

Write the system of equations represented by the matrix. 0 1 2 4 -2 3 6 9 1 0 1 3

Find the center of the circle that can be circumscribed about efg with e(4,4) f(4,2) g(8,2)