Hi I was wondering if you could please assist me with this p
Hi I was wondering if you could please assist me with this problem.
Which of the following are correct?
22 + 32 = 5
x2y2 = x y
x2 + y2 = x + y
(22)(32) = 6
52 + 22 = 29
Solution
a) (22 + 32) = 5
==> (4 + 9) = 5
==> 13 = 5 False
b) (x2 y2) = x y
==> (x2 y2)1/2 = xy
==> (x2)1/2 (y2)1/2 = xy since (ab)m = am bm
==> xy = xy True since (am)n = amn
c) (x2 + y2) = x + y False
d) (22)(32) = 6
==> [(22)(32)]1/2 = 6
==> (22)1/2 (32)1/2 = 6
==> (2)(3) = 6
==> 6 = 6 True
e) (52 + 22) = 29
==> (25 + 4) = 29
==> 29 = 29 True
