What is #sum_(i=1) ^4 (4i-2)#?
1 Answer
Sep 4, 2016
Explanation:
Step 1: Determine the number of terms
In
So, in this expansion, there are
Step 2: Determine the first term,
We do this by inputting the first two values of
The common difference is
We can now apply the formula for sum of an arithmetic series to evaluate the sigma.
So,
Hopefully this helps!