Step-by-step explanation:
a n = 2 ^{n}an=2
n
an=a1 r^n-1 r= all are multiplied by 2
a1= the start of the sequence which is 2
an=2(2)^n-1
=2^1 2^n-1 multiply the terms with the same base by
only adding their exponents.
an=2^n
an=2^1 First term
=2(true)
an=2^2 Second term
=4(true)
an=2^3 Third term
im not sure po if it's correct but hope it helps:>
=8(true)
