Question

what is the formula of approximation

Answer 1

Linear Approximation/Linearization.Linear approximation is a method of estimating the value of a function, f(x), near a point, x = a, using the followingformula: The formula we're looking at is known as the linearization of f at x = a, but this formula is identical to the equation of the tangent line to f at x = a.

Answer 2

тнιѕ ιѕ fσямυℓα σf αρρяσχιмαтισи