math
posted by john .
write the following series using stigma notation...
a) 3/32+3/16+3/8+...... + 12 288
b) 3/4+1/2+0...81(3/4) (hint the general term is tn=3/45n(n1)/8)

Do you mean sigma notation (The Greek capital letter for a sum)?
(a) (3/32) * (Sigma)2^n for n = 0 to 17
I cannot type the sigma symbol