Give the gift of life-changing education! Donate Now!

\(\textbf{A. Arithmetic Sequence and Series} \vspace{10 mm}\)

\(100,120,140,160,…,1000\)

\(a,a+d,a+2d,a+3d,a+4d,…,a+(n-1)d\)

\(\textbf{B. Sequence refers to the terms starting with and following a rule}\)

\(\textbf{C. Arithmetic sequence has common difference, between each consecutive term}\)

\(\textbf{D. Series is sum of the terms in the sequence}\)

\(\textbf{E. Arithmetic mean is the average of the two numbers.}\)

\(t_n=a+(n-1)d\)

\(S_n=\frac{n}{2}[2a+(n-1)d]\)

\(S_n=\frac{n}{2}[a+a+(n-1)d]\)

\(\textbf{F. Sum of natural number}\)

\(1+2+3+4+.....n=\frac{n(n+1)}{2}\)

\(\textbf{G. Arithmetic mean},b=\frac{a+b}{2}\)

© 2021 Global Math Institute. All Rights Reserved.

Main Content