what is the 10th term of the sequence whose nth term is a12=12-3n?
find the sum of the first six term of the arithmetic sequence with first term 40 and common difference -10.
which term of the arithmetic sequence 5,9,13,17...is 401?
if five arithmetic means are inserted between -9 and 9,what is the third mean?
pa help po
Share
5,9,13,17 = 678 10 11 12
umm 192