Which two equations are equivalent? lxl = -5 x = 5 lxl = 5 x = l5l
Follow Math Help Forum on Facebook and Google+
Originally Posted by thamathkid1729 Which two equations are equivalent? lxl = -5 x = 5 lxl = 5 x = l5l first equation is always false ... $\displaystyle |x| \ge 0$ for all real $\displaystyle x$ so, that leaves you three equations to think about.
so it must be the 2nd and the 4th!
Originally Posted by thamathkid1729 so it must be the 2nd and the 4th! Yeah, that's right!
View Tag Cloud