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THANQ MATS
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1.
a) 5/7
additive inverse of 5/7 = -5/7
b) -33/2
additive inverse of -33/2= 33/2
2.
a) -6/5
the multiplicative inverse of -6/5
-6/5×-5/6=1
=-5/6
b) 43/7
the multiplicative inverse of 43/7
43/7×7/43=1
7/43
3.
a) x=5/3
-(-x) =x
-(-5/3)=5/3
+5/3=5/3
5/3=5/3
because -×- =+
b) x=11/15
-(-x) =x
-(-11/15)=11/15
11/15=11/15
because -×-=+
4.
a) 4×5=4×5
commutative property
b) 4/5×1=1×4/5=4/5
commutative property
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