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Nilai dari  adalah ....

Nilai dari begin mathsize 14px style sum from n equals 6 to 10 of open parentheses n minus 5 close parentheses squared end style adalah ....

  1. begin mathsize 14px style 55 end style 

  2. size 14px 45 

  3. size 14px 35 

  4. size 14px 25 

  5. size 14px 15 

Jawaban:

Nilai dari begin mathsize 14px style sum from n equals 6 to 10 of open parentheses n minus 5 close parentheses squared end style adalah

begin mathsize 14px style table attributes columnalign right center left columnspacing 0px end attributes row cell sum from n equals 6 to 10 of open parentheses n minus 5 close parentheses squared end cell equals cell open parentheses 6 minus 5 close parentheses squared plus open parentheses 7 minus 5 close parentheses squared plus open parentheses 8 minus 5 close parentheses squared plus open parentheses 9 minus 5 close parentheses squared plus open parentheses 10 minus 5 close parentheses squared end cell row blank equals cell 1 squared plus 2 squared plus 3 squared plus 4 squared plus 5 squared end cell row blank equals cell 1 plus 4 plus 9 plus 16 plus 25 end cell row blank equals 55 end table end style  

Jadi, jawaban yang tepat adalah A.

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