arimentic sequences formula Flashcards by Ayo Ayinde

Q

for nth term

A

A + (n-1)d

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

find the number of the first n terms

A

n/2 (2a + (n-1)D)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

find the number of the first n terms with l

A

n/2 (a+l)

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

nth term of geometric sequences

A

ARn-1

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

the possible value

A

U2/U1 = U3/U2

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

covergent serices

A

if 1 is greater than R

How well did you know this?

1

Not at all

2

3

4

5

Perfectly

Q

sum to infinity

A

a/1-r

a(1-rn)/1-r

How well did you know this?

1

Not at all

2

3

4

5

Perfectly