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...Mthprecalculus with trigonometry formula sheet distance the d between points p x y and q is midpoint m of line segment connecting quadratic b ac a point slope form parallel lines have same perpendicular negative reciprocal slopes exponential logarithmic formulas interest equations pert r nt n growth decay aekt change base log logbx conic sections standard for parabolas horizontal axis opens left right vertical up down k h if it vertex always located at focus units from on symetry directrix ellipse center major length minor foci lie c hyperbola transverse conjugate intercepts asymptote box drawing determined by along trigonometric sum dierence sin u v cos tan double angle half power reducing cosu polar coordinate conversions rcos rsin law sines cosines abcos...