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3 Cards in this Set
- Front
- Back
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Laws of indices |
a^m x a^n = a^m+n a^m / a^n = a^m-n (a^m)^n = a^mn a^-m = 1/a^m a^1/m = m√a a^n/m = m√a^n a^0 = 1
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arithmetic series |
a = first number d = difference n = term number l = last number
Un = a +(n-1)d Sn = n/2(2a +(n-1)d) Sn = n/2(a+l) |
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Formula for gradient |
(y2-y1)/(x2-x1) |
