compute the sum
\( a)[ 101^2 - 97^2 + 93^2 - 89^2 + \cdots + 5^2 - 1^2.]\)
\( b)[ (a +(2n+1)d)^2- (a + (2n)d)^2 +(a + (2n-1)d)^2 - (a+(2n-2)d)^2 + \cdots + (a+d)^2 - a^2.]\)
PLZ HELP VERY CONFUSING AHHHH
See answers to both of your questions in the middle of this page by "heureka" :
https://web2.0calc.com/members/heureka/?answerpage=531
