Math
posted by Anonymous .
Express the series 11+18+27+...171 using sigma notation.
a1+a2+a3+...ak
11+18+27+...171
thats all I have

could it be..
11+sigma(9n) for n=0 to 19 
Explain please
posted by Anonymous .
Express the series 11+18+27+...171 using sigma notation.
a1+a2+a3+...ak
11+18+27+...171
thats all I have
could it be..
11+sigma(9n) for n=0 to 19
Explain please