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Algerbre 2 propertie
Pg. 14 - 15
Question | Answer |
---|---|
Reflexive Property | a = a |
Symmetric Property | If a=b, then b=a. |
Transitive Property | If a=b and b=c, the c=a. |
Addition Property | If a=b, then a+c=b+c and c+a=c+b. |
Multipication Property | If a=b, then ac=bc and ca=cb. |
Closure Properties | a+b and ab are unique real numbers.The sum of 12 and 6 is the real number 18; the product of 12 and 6 is the real number 72. |
Commutative Properties | a+b=b+a ab=ba. 12+6=6+12 12*6=6*12. |
Associative Properties | (a+b)+c=a+(b+c) (ab)c=a(bc). (12+6)+5=12+(6+5) (12*6)*5=12*(6*5) |
Identity Properties | There are unique real numbers 0 and 1 (1=/0) such that: a+0=a and 0+a=a a*1=a and 1*a=a and 12+0=12 and 0+12=12 12*1=12 and 1*12=12. |
Inverse Properties 1/a*a=1. (1/a is called the reciprocal or multiplicative inverse of a. | Property of opposites:For each a, there is a unique real number -a such that:a+(-a)=0 and (-a)+a=0.(-a is called the opposite or additive inverse of a.) Property of Reciprocals:For each a except 0, there is a unique real number 1/a such that:a*1/a=1 and |
Distriputive property | (of multipication with respect to addition) a(b+c)=ab+ac and (b+c)a=ba+ca |