

9кл прогрессия
Presentation
•
Mathematics
•
9th Grade
•
Practice Problem
•
Medium
Самал Абугалиева
Used 1+ times
FREE Resource
9 Slides • 6 Questions
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Multiple Choice
Арифметикалық прогрессияның алғашқы n мүшесінің қосындысын табу үшін қандай формуланы қолданамыз?
Sn = a1 + a2 + ... + an
Sn = (a1 + an) / 2 · n
Sn = a1 · n
Sn = (a1 + d(n-1)) · n
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Open Ended
Арифметикалық прогрессияның алғашқы n мүшесінің қосындысын табу формуласын түсіндіріңіз.
8
Multiple Choice
Арифметикалық прогрессияның алғашқы n мүшесінің қосындысының формуласын a1 және d арқылы қалай өрнектеуге болады?
Sn = (a1 + a1 + d(n-1))n / 2
Sn = (a1 + d)n / 2
Sn = (a1 + a2)n / 2
Sn = (a1 + d(n-1)) / 2
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Fill in the Blanks
Type answer...
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Fill in the Blanks
Type answer...
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Multiple Select
Тізбектердің қайсысы арифметикалық прогрессия болып табылады?
3; 6; 9; 12; ...
-1; -1; -1; ...
xn = 3n – 2
-3; -1; 1; 3; ...
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