SOLUTION: a, b, c and d are numbers of different values such that a + b = d a*b*c = 0
Which of the 4 numbers MUST be equal to 0?
A) a B) b C) c D) d E) none
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Which of the 4 numbers MUST be equal to 0?
A) a B) b C) c D) d E) none
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Question 311271: a, b, c and d are numbers of different values such that a + b = d a*b*c = 0
Which of the 4 numbers MUST be equal to 0?
A) a B) b C) c D) d E) none
You can put this solution on YOUR website! Since , one of them must be equal to zero. , and each number is unique so ,, and cannot all be zero.
Since cannot equal , then cannot be zero or else .
Since cannot equal , then cannot be zero or else .
Since and cannot be zero, divide them out of the equation,
which leaves
And then must be zero.
