1. The problem statement, all variables and given/known data Find the linear approximation of tan(44) 2. Relevant equations f(x) = tan(44 + x), let x = a = 1 f`(x) = sec2(44+x) 3. The attempt at a solution L(x) = f(a) + f`(a)(x-a) L(x) = 1 + 2(x-1) L(0) = 1 + 2(0-1) = -1 (Answer should be approx. 0.965) Where am I going wrong? X should be zero, because tan(44+0) is what I'm trying to find the approximation of, right?