Quote:Come to this:
Quote:eg for the first one: this 2x2 matrix |2 -3| |1 5| = 13 What calculations are involved? and is the (-1)^2 multiplied against that equation after or before that calculation eg do you work out a value from the 2x2 matrix and then multiply with (-1)^2 or you somehow multiply (-1)^2 with it first? Thanks