Tan^2 ø +1 = -2 tan ø on the interval 0º≤ø≤360º

135°

135°, 225°

135°, 315°

135°, 225°, 315°

What are the solutions of the equation x4 + 6x2 + 5 = 0? use u substitution to solve.

What is the area of the trapezoid shown

Captain umaima has a ship, the h.m.s. khan. the ship is two furlongs from the dread pirate nadia and her merciless band of thieves. the captain has probability 3/7 of hitting the pirate ship. the pirate only has one good eye, so she hits the captain's ship with probability 2/5. if both fire their cannons at the same time, what is the probability that the captain hits the pirate ship, but the pirate misses.