




Card 12 / 35:
associative property of addition
the sum of three numbers may be grouped differently without affecting the result; in symbols, a + ( b + c ) = ( a + b ) + c

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Questions & Answers
Prove that: (2cos&+1)(2cos&1)(2cos2&1)=2cos4&+1
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Huy
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victor
***sscc.edu/home/jdavidso/math/catalog/polynomials/fourth/fourth.html
Oliver
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Adityasuman
x=  1
Aditya
Source:
OpenStax, Algebra and trigonometry. OpenStax CNX. Nov 14, 2016 Download for free at https://legacy.cnx.org/content/col11758/1.6
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