an operation # is defined by the equation a#b = a-b/a+b, for all numbers a dn b such that a not equa -b. If a not equal -c and a#c=0, then c=
a. -a
b.-1/a
c. 0
d. 1/a
e. a
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very tough combination VIC og 122
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Saffa
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for a#c to be equal to zero and a <> -c, the numerator of the equation needs to be equal to zero.
i.e. because a#c = (a-c)/(a+c) and a+c is not equal to (<>) 0
The the following ust be true
a - c = 0
ie. a = c
i.e. because a#c = (a-c)/(a+c) and a+c is not equal to (<>) 0
The the following ust be true
a - c = 0
ie. a = c
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blue_lotus
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If the fraction has to become 0 the numerator must be 0
in this case the numerator is a-c =0
which means a=c , hence the answer
Other information like a not equal to -c , is given to ensure the denominator is not zero. If denominator is zero the fraction becomes undefined.
in this case the numerator is a-c =0
which means a=c , hence the answer
Other information like a not equal to -c , is given to ensure the denominator is not zero. If denominator is zero the fraction becomes undefined.
