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Bentuk notasi sigma dari 1 - 4 + 9 - 16 + 25 +… adalah…

Bentuk notasi sigma dari 1 - 4 + 9 - 16 + 25 +…  adalah…

  1. begin mathsize 14px style begin inline style sum from straight i equals 1 to straight n of end style open parentheses negative 1 close parentheses to the power of straight i minus 1 end exponent open parentheses straight i plus 2 close parentheses squared end style 

  2. begin mathsize 14px style begin inline style sum from straight i equals 1 to straight n of open parentheses negative 1 close parentheses to the power of straight i minus 1 end exponent open parentheses straight i plus 2 close parentheses squared end style end style 

  3. begin mathsize 14px style begin inline style sum from straight i equals 1 to straight n of end style open parentheses negative 1 close parentheses open parentheses straight i close parentheses squared end style 

  4. begin mathsize 14px style begin inline style sum from straight i equals 1 to straight n of end style open parentheses negative 1 close parentheses to the power of straight i minus 1 end exponent open parentheses straight i close parentheses squared end style  

  5. begin mathsize 14px style begin inline style sum from straight i equals 1 to straight n of end style open parentheses negative 1 close parentheses to the power of straight i minus 1 end exponent open parentheses straight i minus 1 close parentheses squared end style 

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begin mathsize 14px style 1 squared minus 2 squared plus 3 squared minus 4 squared plus 5 squared open parentheses negative 1 close parentheses to the power of 0 1 squared plus left parenthesis negative 1 right parenthesis to the power of 1 left parenthesis 2 right parenthesis squared plus left parenthesis negative 1 right parenthesis squared left parenthesis 3 right parenthesis squared plus left parenthesis negative 1 right parenthesis cubed left parenthesis 4 right parenthesis squared plus left parenthesis negative 1 right parenthesis to the power of 4 left parenthesis 5 right parenthesis squared plus midline horizontal ellipsis equals sum from straight i equals 1 to straight n of open parentheses negative 1 close parentheses to the power of straight i minus 1 end exponent open parentheses straight i close parentheses squared end style 

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