Final answer:
To find the linear approximation of √(1+x) around x=0, we can use the tangent line at x=0, which is y=1.
Step-by-step explanation:
To find the linear approximation of √(1+x) around x=0, we can use the tangent line at x=0. The tangent line at x=0 is the line that touches the curve at that point and has the same slope as the curve at that point.
In this case, the tangent line is just the line y = 1, since the slope of the function √(1+x) at x=0 is 1.