Arithmatical - Surds and Indices
DIRECTIONS : Important Facts and Formulae
1. | Laws of Indices |
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i. am x an = am + n |
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ii. am / an = am - n |
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iii. (am)n = amn |
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iv. (ab)n = anbn |
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v. (a/b)n = an/ bn |
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iv. a0 = 1 |
2. | Surds: |
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Let a be rational number and n be a positive integer such that a(1/n) =
n√a. |
3. | Laws of Surds: |
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i. n√a = a (1/n) |
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ii. n√ab =
n√a x n√b |
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iii. n√a/b =
n√a / n√b |
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iv. (n√a)n = a |