Question

determine the first five terms an=(-1)^n+1n^2
a1
a2
a3
a4
a5

Answer 1

you are given an=(-1)^n+n^2
now solve for a1 through a5

Answer 2

for a1=0

Answer 3

yes

Answer 4

okay and for a2= 3

Answer 5

not quite when you square a negative number you get a positive

Answer 6

a2=4?

Answer 7

-4?

Answer 8

positive 4 is correct

Answer 9

(-1)^odd power=-1 (-1)^even power=1
-1^any power=-1

Answer 10

ya bur i have (-1)n+1n^2 not (-1)nn^2

Answer 11

an=(-1)^n+1n^2 this is what you wrote

Answer 12

yes

Answer 13

so it should be -4

Answer 14

?

Answer 15

i still think its positive 4..where are you getting the negative from?