Question

Heeeeelp Pls.

Answer 1

Can someone help me with the first two? D:

Answer 2

@zepdrix @mathmate

Answer 3

9th one is 1/7 , sqrt((n+2)/(49n+2))=sqrt((1+2/n)/(49+2/n))

Answer 4

How'd you get that?

Answer 5

Why did you divide by n?

Answer 6

lim 1/n=0 so to apply this formula i put it in that form

Answer 7

Oh i see. thanks!
Do you know $8?

Answer 8

#8*

Answer 9

For 8th one, 4^(n+2)=16 4^n

Answer 10

so its basically 16 (4/5)^n

Answer 11

4/5 <1 so by its convergent, its basically a GP series

Answer 12

how'd you get 16 4^n ?

Answer 13

4^(n+2)= 4^n. 4^2 =16. 4^n

Answer 14

Got it thanks

Answer 15

Can you help me with these? I am stuck :/

Answer 16

I got #13.

Answer 17

I thought #14 was 1, it wasn't...

Answer 18

which one is 13?

Answer 19

hello

Answer 20

I got #14 as well

#13 was 1
#14 was 0

Answer 21

I dont get # 12 though

Answer 22

12 will be 1

Answer 23

How did you get that?

Answer 24

Ooooooh. Thanks!

Answer 25

lim cos(3/n)=cos (lim3/n)=cos 0 =1

Answer 26

I needz help with number 18 :3