Exercise 2.1.55 leta suppose a row operation is applied to a and the result is b- find the elementary matrix e that represents this row operation ? 1-3. exercise 2.1.56 let a - suppose a row operation is applied to a and the result is hb find the elementary matrix e that represents this row operation.

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.