PsychStudent
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Homework Statement
Find the linear approximation of tan(44)
Homework Equations
f(x) = tan(44 + x), let x = a = 1
f`(x) = sec2(44+x)
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?