Question

write the first five terms for the sequence
an=n(n+1)

Answer 1

find value of an for n=1, n=2, n=3, n=4 and n=5

Answer 2

is it 2,5,7,9,11

Answer 3

nope

Answer 4

check out your second term

Answer 5

and all the remaining terms

Answer 6

putting n=2 gives you an= 2*(2+1)

Answer 7

4

Answer 8

nope ..it's 2*3=6

Answer 9

how

Answer 10

nvm lol

Answer 11

solve the brackets first then multiply the outcome of bracket by2 like 2+1=3 and multiplied by 2=6

Answer 12

i get it idk what i was looking at

Answer 13

a1=2
a2=2*3=6
a3=3*4=12
a4=4*5=20
a5=5*6=30

Answer 14

what about this an=(-2)^n

Answer 15

what do I do

Answer 16

just put n=1,2,3,4,5 and so on.....like (-2)^1=-2 but in case of even power result will be positive

Answer 17

so sombody told me its -2,4,-8,16,-32 but i dont understand when you plug those numbers in you dont get those unless you plug in the answer of what you got before

Answer 18

a1=(-2)^1=-2
a2=(-2)^2=4
a3=(-2)^3=8
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Answer 19

make sure you have the proper starting value of "n"; some texts say 1, others say 0

Answer 20

omg idk what im thinking im so lost today lol thanks really

Answer 21

ohhh sry.....
a3=(-2)^3=-8

Answer 22

Yah i got it i was thinking times each other not to the power

Answer 23

Now for something like this what do I do same question as befoe a2=10, d=-2