algebra – arithmetic
Reading time:progressions
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arrangements
Total number of possible arrangements for m objects n to n :
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permutations
Number of permutations possible with m objects :
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![formula: algebra – Arithmetic Permutations](https://www.suezwaterhandbook.com/var/degremont/storage/images/formules-et-outils/formulaire/mathematiques/algebre-arithmetique/dossier-media/formule-algebre-arthmetique-permutations/78684-3-eng-GB/formula-algebra-Arithmetic-Permutations_articlewidth.png)
combinaisons
Total number of possible combinations for m objects taken n to n :
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compound interest
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annual repayments
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amortisation
V = sum to be amortized.
a = annual payment for amortization and interest purposes
n = number of annual payments
T = amortization rate
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