Answer:

Step-by-step explanation:
<u><em>The question in English is:</em></u>
From the general term, calculate the first 4 terms.
(Consider that you must assign values to the variable n)
we have

step 1
Calculate the first term
For n=1

step 2
Calculate the second term
For n=2

step 3
Calculate the third term
For n=3

step 4
Calculate the fourth term
For n=4

therefore
the first 4 terms are

Answer:
(3,2)
Step-by-step explanation:
both the surface areas of the green and blue figures?
Answer:
1.25
Step-by-step explanation:
type in your calculator:
-1.5+2.75 OR 2.75-1.5
you should get the same answer