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#Exercise 4 Grolnt) SuS White them ( CCowiny Expah $ the Sigma notatcon Witbout 3 M1K @} 2 Kt2 K-1 (6) 2 (-1k = 56(K) K=1...

Question

#Exercise 4 Grolnt) SuS White them ( CCowiny Expah $ the Sigma notatcon Witbout 3 M1K @} 2 Kt2 K-1 (6) 2 (-1k = 56(K) K=1

#Exercise 4 Grolnt) SuS White them ( CCowiny Expah $ the Sigma notatcon Witbout 3 M1K @} 2 Kt2 K-1 (6) 2 (-1k = 56(K) K=1



Answers

Express each of the sums without using sigma notation. Simplify your answers where possible. $$\sum_{k=2}^{6}(1-2 k)$$

This problem, uh, is about rewriting this Some written in sigma notation. Where K is the index of the sun and K varies from 1 to 2. So we're going to have que eagles on cables to here off the term that is composed using K. All right, so the first thing is to recognize how many how many terms are going to be in the summer? There's going to be one term when Casey want Casey to a second term, and that is all that we have. So, uh, this is the general term using K. So if k is one this first term physical too six times, 1/1 plus one, uh, we have insert that k equals on into the into the formula. That right? Plus, then we have for cables through. We have six times, too. Six times, actually. Why don't I bring this a little bit closer? Food the sun. So when KZ equals two, we have six times to have a two plus one suit. Bless form. Uh, in the second term, we have replaced K with to, and now we need to evaluate some. This is written without Sigma. Uh, this letter is the capital Sigma off the Greek alphabet. So we have six times 16 over to six times 2 12 over three, and we reduce each of these fractions. This one by two to development is 1/6 of over 23 on bridges. This one by three departed about three leaves. One told about about three is for so we have three plus four equals seven every year. This is the answer to the first part of the question where we are. We need to write this son without signal irritation, and then we evaluate and there we are, hope it helps by

Okay. Sig Meditation K from K goes 123 of K minus one over K. Expanded out is just gonna be one minus 1/1 plus two minus 1/2 3 minutes. 1/3. Then there's gonna be zero plus a half, plus two thirds. And then to get to the common, the not lowest common denominator is gonna be 3/6 plus four or six is just unequal seven or six.

Well, now lost. Look at purchase. So the question basically swallowed this solution. Hey, from long six. Main line. But he wants wrong. This could be expending to turn to So will be written us monkeys wall. So six months And when pay is to six up sex among blood. You this iss six? Yeah, this well, my three these war so

Yeah, Do you have Okay which is equal to one plus get over to was can be over to to that.


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