Elementary Differential and Integral Calculus FORMULA ...
https://www1.maths.leeds.ac.uk/~kisilv/courses/formulae0111.pdfElementary Differential and Integral Calculus FORMULA SHEET Exponents xa ¢xb = xa+b, ax ¢bx = (ab)x, (xa)b = xab, x0 = 1. Logarithms lnxy = lnx+lny, lnxa = alnx, ln1 = 0, elnx = x, lney = y, ax = exlna. Trigonometry cos0 = sin π 2 = 1, sin0 = cos π 2 = 0, cos2 θ+sin2 θ = 1, cos(−θ) = cosθ, sin(−θ) = −sinθ, cos(A+B) = cosAcosB−sinAsinB, cos2θ = cos2 θ−sin2 θ,