CAS MA 124 Study Guide - Midterm Guide: Ion, Horse Length, Partial Fraction Decomposition
10 Oct 2018
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Ma 124 - fall "12 - exam 1a - answers. A correct answer without justi - cation receives no credit. Check your algebra and arithmetic carefully: (16 points) when given as a medication, iodine has a half-life in the bloodstream of 8 days, a patient is given an initial dose of 80 millicuries. Using the formula which can be obtained by. A(t) = a0e kt = 80e kt k = ln 2 t1/2 ln 2. = ln e k8 = k8 k = ln 1. 8 t ln(. 2) = ln e ln 2. 8 t t = 8 ln(. 2) ln 2. Answer a) use integration by parts with u = ln x dv = x dx gives. 1 x dx v = x dx = U dv = uv v du x2 ln x x2 ln x x2 ln x .
