Question

Use differentials to approximate the error and relative error in using the given measurement to calculate the value of the function, if the measurement may be off by the specified amount.

Answer 1

sing an intensity of I = 16 lumens for the distance D = 100/ (sqrt I) I of an object from a light source if the intensity may be off by 1.5 lumens

Answer 2

i know the error but i can't figure out relative error