Determine the first term of the arithmetic sequence in which the 16th term is 110 and the common difference is 7
7 years ago
an=a1+d(n-1)
n=16, a16=110, d=7,
a1=a16-d(n-1)=110-7*(16-1)=5
7 years ago
Answered By Xuezhong J
an=a1+d(n-1)
n=16, a16=110, d=7,
a1=a16-d(n-1)=110-7*(16-1)=5