Difference between revisions of "Sums"
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[[category: #sum of natural numbers]] | [[category: #sum of natural numbers]] | ||
[[comment: 5-10]] | [[comment: 5-10]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=6}^{11} i</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of natural numbers]] | ||
+ | [[comment: 6-11]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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[[category: #sum of odds]] | [[category: #sum of odds]] | ||
[[comment: 1-19]] | [[comment: 1-19]] | ||
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}}</div></div><br> | }}</div></div><br> | ||
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[[category: #sum of odds]] | [[category: #sum of odds]] | ||
[[comment: aₙ, 1, 36]] | [[comment: aₙ, 1, 36]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | == Sum of Sevens == | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^9 7i</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum]] | ||
+ | [[comment: 7i,1-9]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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[[category: #sum of cubes]] | [[category: #sum of cubes]] | ||
[[comment: 1-5]] | [[comment: 1-5]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{6} i^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of cubes]] | ||
+ | [[comment: 1-6]] | ||
}}</div></div><br> | }}</div></div><br> | ||
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=== Cubes of Evens === | === Cubes of Evens === | ||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{3} \left(2i\right)^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #cubes of evens]] | ||
+ | [[comment: 2-6]] | ||
+ | }}</div></div><br> | ||
<div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} \left(2i\right)^3</math><div class="mw-collapsible-content"> | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} \left(2i\right)^3</math><div class="mw-collapsible-content"> | ||
{{#annotask: | {{#annotask: | ||
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[[category: #cubes of evens]] | [[category: #cubes of evens]] | ||
[[comment: aₙ, 2, 1800]] | [[comment: aₙ, 2, 1800]] | ||
+ | }}</div></div><br> | ||
+ | |||
+ | |||
+ | <div class="mw-collapsible mw-collapsed"><math>\scriptstyle\sum_{i=1}^{5} \left(4i\right)^3</math><div class="mw-collapsible-content"> | ||
+ | {{#annotask: | ||
+ | [[category: #sum of cubes]] | ||
+ | [[comment: 4i,1-5]] | ||
}}</div></div><br> | }}</div></div><br> |
Latest revision as of 16:24, 1 July 2023
Contents
[hide]Sum of Natural Numbers
even number of terms = last term is even
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odd number of terms = last term is odd
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Find the last term
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Find the first term
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Sum of Evens
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Find the last term
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Sum of Odds
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Find the last term
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Sum of Sevens
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Sum of Triples
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Sum of Powers of Two = Sum of Even-Times-Even Numbers
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Sum of Powers of Three
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Sum of Powers of Four
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Sum of Squares
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Squares of Evens
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Squares of Odds
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Sum of Cubes
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Find the last term
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Cubes of Odds
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Cubes of Evens
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