I need help finding the answer to this question on edge.

6

Step-by-step explanation:

We need to evaluate :-

Here the is the sum operator . And here we need to find the sum from n = 1 to n = 4 . We can write it as ,

Now we know that for odd powers of -1 , we get -1 and for even powers we get 1 . Therefore ,

Now add the terms inside the brackets and then multiply it with the number outside the bracket . We will get ,

Hence the required answer is 6.

step-by-step explanation: