Arithmetic Series?
1 Answer
Jul 17, 2018
Explanation:
#"this is an arithmetic series whose sum is given by"#
#•color(white)(x)S_n=n/2[2a+(n-1)d]#
#"where a is the first term and d the common difference"#
#"here "a=8,d=1" and "n=8#
#S_8=8/2[(2xx8)+(7xx1)]#
#color(white)(xx)=4(16+7)=4xx23=92#