If an = n², find the sum of the 13th and 20th term of sequence?
If an = n², find the sum of the 13th and 20th term of sequence?
Explanation
Given an = n²:
a13 = 13² = 169
a20 = 20² = 400
The sum of the 13th and 20th term is:
169 + 400 = 569
Given an = n²:
a13 = 13² = 169
a20 = 20² = 400
The sum of the 13th and 20th term is:
169 + 400 = 569