Question

Sum of first n terms of an arithmetic sequence is

3n2_ 6n.

a) Calculate first term and common difference?​

Answer 1

Answer:

The joule ( jawl, jool; symbol: J) is a derived unit of energy in the International System of Units. It is equal to the energy transferred to (or work done on) an object when a force of one newton acts on that object in the direction of the force's motion through a distance of one metre (1 newton metre or N⋅m).