Question

ANSWER brainliest if right

Answer 1

Answer:

B

Step-by-step explanation:

Step 1: You can test the equations out to see if it gets what you want

A. $a_{n} =-\frac{2}{(1)+2} \\a_{n} = -\frac{2}{3}\\ -\frac{2}{3} =/= 1$

Therefore we can rule out A

B.$a_{n} =(2(1)-1)^{2} \\a_{n} =(2-1)^{2} \\a_{n} =(1)^{2} \\a_{n} =1$

B Does give you the right answer but to make sure we want to test one more number

$a_{n} =(2(3)-1)^{2} \\a_{n} =(6-1)^{2} \\a_{n} =(5)^{2} \\a_{n} =25$

Therefore B is the explicit formula for the sequence