An = 5 × an-1 and a1 = 3.

what is a5
enter your answer in the box.
a5 =

Step-by-step explanation:

The geometric sequence is represented by

.......... (1) and

So,

{Putting n = 2}

Again, putting n = 3 in equation (1), we get

Again, putting n = 4 in equation (1), we get

Again, putting n = 5 in equation (1), we get

(Answer)

step-by-step explanation:

hans did not square the 40-unit side; he merely multiplied it by 2.   incorrect.

option 3 . (5x + 1) - (-10x + 6)

step-by-step explanation:

option 1 :

(4x + 3) + (-9x + 4)

or 4x+3 -9x + 4

or -5x + 7

option 2

(x - 2) - (6x - 9)

or x-2-6x + 9

or -5x + 7

option 3

(5x+ + 6)

or 5x + 1 + 10x -6

or 15x -5

option 4

-4x+2x+7-3x

-7x + 2x + 7

-5x + 7

hence only option 3 did   not satisfy the given simplify expression.