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Exam (elaborations)
A Level Maths AQA Verified Solutions
A Level Maths AQA Verified Solutions 
Straight line equation formula y-y1 = m(x-x1) 
Perpendicular straight lines m1 x m2 = -1 
Log(a)b=c a^c=b 
Log(10)x + Log(10)y = Log(10)xy 
Log(10)x - Log(10)y = Log(10)x/y 
kLog(10)x = Log(10)x^k 
Displacement dy/dx = Velocity 
Velocity dy/dx = Acceleration 
Cos^2A + Sin^2A= 1 
1 + Tan^2A = Sec^2A 
1 + Cot^2A = Cosec^2A 
2SinAcosA = Sin2A 
Cos^2A - Sin^2A = Cos2A 
(2tanA)/(1-tan^2A) = Tan2A 
A^x A^y = A^xy 
A^x / A^y = A^x-y 
(A^x)^y a^xy ...