Question

Manoj and Shira were asked to find an explicit formula for the sequence -9,-27,-81,-243

Answer 1

Answer:

-729

Step-by-step explanation:

We have,

-9 , - 27, - 81 , - 243 , ....

Now,

-9 × 3 = -27

-27×3= -81

-81×3 = -243

So , we observe that obtained no. is multiplied by 3 .

Now , -243× 3 = - 729