Q. Evaluate the summation below.i=0∑4(−7+7i)Answer:
Write Terms of Series: We will first write out the terms of the series to understand the pattern.For i=0: (−7+7×0)=−7For i=1: (−7+7×1)=0For i=2: (−7+7×2)=7For i=3: (−7+7×3)=14For i=4: (−7+7×4)=21
Find Sum of Terms: Now, we will add these terms together to find the sum of the series.Sum = (−7)+(0)+(7)+(14)+(21)
Perform Addition: Perform the addition to find the sum.Sum = −7+0+7+14+21Sum = 35
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