What is the sum of the arithmetic series below

Option A) 585

Step-by-step explanation:

a1 = 5(1)-1 = 4

a2 = 5(2)-1 = 9

d = a2 - a1 = 9 - 4 = 5

n = 15

=

=

the answer is. -82562234434584

step-by-step explanation:

the answer is:

the answer is:

to solve the problem, we need to remember the quotient of power property, it's defined by the following relation:

if we have a quotienf of powers that have the same base, we need to keep the same base and subtract the exponent of the denominator power to the exponent of the numerator power.

so, we are given the expression:

then, calculating we have:

hence, the answer is:

have a nice day!