Powers
Laws of exponents are
- (a^m × a^n) = (a^{m+n})
- (a^m ÷ a^n) = (a^{m-n})
- ((a^m)^n) = (a^{mn})
- (a° = 1), where a ≠ 0
- (a^m over b^m) = (({a over b})^m)
Some Important Facts
Multiplicative inverse of (a^b) is (1 over a^{-b})
Multiplicative inverse of (a over b) is (b over a) = ({left (a over b right)}^{-1})
(Standard ) form (also called as (scientific ) notation form) is (a times 10^b), where (1 leq a < 10) and (b) is an integer
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