A+a to the second power +a to the third power +.+a to the 2010 power +a to the 2011 power

A+a to the second power +a to the third power +.+a to the 2010 power +a to the 2011 power

There are two cases:

When a=0, the result is 0;


When a is not equal to 0, the result is written directly according to the summation formula of the first n terms of the equal difference sequence.

(Two thirds) of the 2010 power X (1.5) of the 2009 power X (-1) of the 2011 power

0