I know that = 1 Can you show me how to use trigonometric identities to simplify and solve this equation?

What are the solutions of the system? solve by graphing. y = x^2 + 3x + 2 y = 2x + 2

Which expression is equivalent to (4 +6i)^2? ? -20 + 48i 8 + 12i 16 - 36i 20 + 48i

Delbert keeps track of total of the total number of points he earns on homework assignments, each of which is worth 60 points. at the end of the semester he has 810 points. write an equation for delbert’s average homework score a in terms of the number of assignments n.