Answered: d. To simplify calculations, a student uses a tangent line approximation to P(t) at 1=0 as a model for the level of pollutants in the lake. At what time t does… | bartleby

(a) Find the tangent line approximation to cos x at x=π / 4(b) Use a graph to explain how you know whether the tangent line approximation is an under- or overestimate for 0 ≤ x ≤π / 2(c) To one decimal place, estimate the error in the approximation for 0 ≤ x ≤π / 2

Tangent Line | Definition, Equation & Examples