Predicting What Comes Next: Sequences and Progressions | Exercise 8.1
Question 2
Find the and terms of the sequence for .
Solution
Understand the Question
- The sequence is defined by the general formula , where represents the term.
- To find any specific term of the sequence, substitute the given term number directly into the formula.
- We need to evaluate the formula for and .
Step 1 · Find the Term
Substitute into the formula 
Step 2 · Find the Term
Substitute into the formula
Answer
The term is and the term is .
Common Mistakes
- Order of Operations: Incorrectly subtracting before multiplying, e.g., computing instead of .
- Index Confusion: Substituting the desired term number into instead of replacing in the expression.
More questions in Exercise 8.1
Q1Q2Q3Q4Q5Q6
Find the first five terms of the sequence in which the term is given by, for :
(i)
(ii)
(iii)
Find the and terms of the sequence for .
Determine whether 97 and 172 are terms of the sequence for .
Which term of the sequence for is 607?
A sequence is given by the recursive rule , for . Find the first five terms of the sequence. Is a term of this sequence? If so, which term is it?
Let , , , and for . Find , , , , and .