If `F = x^2`, relative error in f would be how many times the relative error in x?

Define relative error.

Show that the relative error in the volue of a sphere due to an error in measurement of radius is thhree times the relative error in radius.

The area S of a triangle is calculated by measuring b,c and A. If the be an error DeltaA in the measurement of A, show that the relative error in area is given by (DeltaS)/s = cot A. DeltaA

How is systematic error eliminated?

Electromgnetic waves travel in a medium with a speed of 2 xx 10^8 m s^(-1) .The relative permeability of the medium is 1.Find the relative permittiity.

What is an error? How are they classified and how do the errors combine?

Seven relatives of a man comprises four ladies and three gentlemen: his wife has also seven relatives-three of them are ladies and four gentlemen. In how many ways can they invite 3 ladies and 3 gentlemen at a dinner party so that there are three mans relatives and three wifes relatives?