An arithmetic progression starts with 8 and has common difference 5.
MATHEMATICS · Multi-part · A Level · Mathematics · Sequences and series · Sequences and series
Problem
An arithmetic progression starts with 8 and has common difference 5.
(i) Write an expression for the nth term of this progression.
(ii) Determine which term of the progression is equal to 103.
(iii) Verify your answer by substituting the value of n obtained in part (ii) back into the expression from part (i).