Every square root has two solutions: the positive one and the negative one. In this case, if we take the positive one, the equality is false, but it is correct if we take the negative root. Demostration: (1-1)^2=1-((1-0^2)^(1/2))^2 0^2=(1-1)^2 0=0 As you can see, now the equality is a true one.
Every square root has two solutions: the positive one and the negative one. In this case, if we take the positive one, the equality is false, but it is correct if we take the negative root. Demostration:
ReplyDelete(1-1)^2=1-((1-0^2)^(1/2))^2
0^2=(1-1)^2
0=0
As you can see, now the equality is a true one.