SOLUTION: Hi there, I'm being asked to evaluate the following: {{{(-1)^(k+1)*k}}} for k = 1 through k = 4 I plugged 1 through 4 into the equation and ended up with this equation: {{

Question 375918: Hi there, I'm being asked to evaluate the following:
for k = 1 through k = 4
I plugged 1 through 4 into the equation and ended up with this equation:

I'm just checking myself, this is new to me but seems relatively simple. Thanks for your help and have a great holiday!
Found 2 solutions by Alan3354, Earlsdon:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
What does that mean, 1 thru 4? Integers only?
Or the value at 4 minus the value at 1 ?
Where did you get an x ?

Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
Am I missing something here?
How did you start with (no x's) and end up with
Have you mixed up two different problems?
Anyway, back to the original question:
Evaluate for k = 1 through 4.
Start with k=1.
=
Now k=2.
=
Now you should be able to finish this by following the examples above.
Good luck!
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