What the that needs to be solved
Answer:
The formula to find the sum of the first n terms of our sequence is n divided by 2 times the sum of twice the beginning term, a, and the product of d, the common difference, and n minus 1. The n stands for the number of terms we are adding together.
-1 or option c is correct. Use the given functions to set up and simplify f(−2).
The answer 12/72 because you multiply
Answer:
Sorry don't know the answer