random_17
Flashcards by , created almost 6 years ago

Maths Flashcards on formulas, created by random_17 on 12/04/2013.

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random_17
Created by random_17 almost 6 years ago
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Question Answer
log laws LOGa + LOGb =LOGab / / LOGa - LOGb = LOG (a/b) / / nLOGa = log a^n / /
Sequences Un= a+ (n-1)d / / Sn = n/2(2a+(n-1)d) / / Sn = n/2(a+l) / /
Arc length and area of a sector in r s=r0 / / 1/2 r^20
Trigonometric identites tanx = sinx/cosx / / sin^2 + cos^2 = 1
Translations y=f(x)+a - a in the y direction / / y=f(x-a) - a in the x direction
Stretch y=af(x) - sf=a in the y / / y=f(ax) - sf=1/a in the x
reflection y=-f(x) in y axis / / y=f(-x) in x axis
Area of a triangle 1/2 bh / / 1/2 abSinC