Perry D.
asked • 02/20/161+2+3=6. 1x2x3=6. Are there any other sets of numbers that do this?
Do other sets of numbers add up to the same number as they multiply to?
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2 Answers By Expert Tutors
Kenneth S. answered • 02/20/16
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Expert Help in Algebra/Trig/(Pre)calculus to Guarantee Success in 2018
The property that you cite is called "perfect number" in that branch of mathematics called Number Theory.
A perfect number is defined (as I recall) as a positive integer equal to the sum of all of its factors (excludes itself).
28 is a perfect number.
Matt H. answered • 02/20/16
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PATIENT :-) Elem/Middle MATH and WRITING; HS SAT and COLLEGE ESSAYS!
How about:
-1 + 0 + 1 = 0
-1 x 0 x 1 = 0
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Eric Z.
Consider a triangle where no angles are 90 degrees if u add the tangent of all those angles it will equal to the product of the tangent of all those angels. tanA x tanB x tanC = tanA + tanB +tanC If we use a random triangle that fits this rule, for example, a triangle with the angels of 70, 30, and 80 degrees, tan70 x tan30 x tan80 = tan70 x tan30 x tan80. This will work with any triangle that does not have a 90-degree angle.04/30/20