am x an = am+n
a-n = 1/an
(am)n = amn
am/an = am-n
am = an m=n
(a\b)n = an/bn
a0 = 1, a ≠ 0
ഉദാ:
1) (32)3/5 x (64)-1/6 x (8)-1/3 എത്ര?
a) 3 b) 10 c) 26 d) 2
(32)3/5 = [(32)1/5]3 = 23 = 8
(64)-1/6 = [(64)1/6]-1 = 2-1
(8)-1/3 = [(8)1/3]-1 = 2-1
(32)3/5 x (64)-1/6 x (8)-1/3 = 8 x ½ x ½ =2 (d)
2) 8x7/4x3 ÷ 2x4 = ?
a) 6x4 b) 4x2 c) x4 d) 1
8x7/4x3 ÷ 2x4 = 2x7/x3 ÷ 2x4
= 2x7-3 ÷ 2x4
= 2x4 ÷ 2x4 = 1 (d)