3 - Sequences and Series

Question 1

What is the formula for the nth term in an arithmetic sequence?

Answer 1

Question 2

What does Un, a, d stand for in an aritmetic sequence formula?

Answer 2

Question 3

If the sequence is decreasing what is d?

Answer 3

Question 4

If you have a question like this what would you do?

Answer 4

Question 5

If you have a question like this what would you do?

Answer 5

Question 6

What is the formula for the sum of an arithmetic series?

There are 2 formuilas

Answer 6

Question 7

Do this proof

Answer 7

Question 8

What is the formula for the nth term in a Geometric sequence?

Answer 8

Question 9

What happens to a geometric sequence with a common ratio |r|<1

Answer 9

Question 10

What is an alternating sequence?

Answer 10

Question 11

What do you do when in a Geometric sequence question they ask you to form a quadratic equation?

Answer 11

You that (thing in picture) and then you cross multiply

Question 12

How would you answer this question?

Answer 12

Question 13

How would you do a question like this?

Answer 13

Question 14

What is the formula for the sum of a geometric series?

Answer 14

Question 15

How would you do this proof?

Answer 15

Question 16

When is a geomtric series convergent?

Answer 16

Question 17

What is the sum to infinity formula for a convergent geometric series?

Answer 17

Question 18

How would you do a question like this?

Answer 18

Question 18

How would you do a question like this?

Answer 18