1. Determine first term and common difference of arithmetic sequence explained. Provide the recrusive formula for sequence.
Find the first term of sequence .
Find common difference.
Find recrusive formula for sequence.
Find the formula for nth term of sequence
2. Find whether infinite geometric series coverages or diverges. If it converges find sum.
1+ 1/3 + 1/9 +......
3. Complete sum of the sequence
n∑k=1(7/9)k
Sn = ( )[ 1- ( )n ].