Question

Hel

Answer 1

@AAbomosalam1998 @perl @sshayer @brainzonly

Answer 2

Difference is 4, so it's a geometric sequence

We use gn = a * b^n-1
gn = -3 * (-4)^(n-1)

Answer 3

ye

Answer 4

thanks!

Answer 5

@mhchen

Answer 6

@Nnesha @perl @brainzonly

Answer 7

System of equations so

-21 = a * b^(2-1)
567 = a * b^(5-1)

You can solve for a and b right?

Answer 8

my tutor is helping explain

Answer 9

@mhchen can you help with my qestion pls

Answer 10

hold on I'm on the phone then I'll calculate

Answer 11

an = 7 • (-3)^n - 1