n= sqrt 225 = 15
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Conditional statement: If n2 equals 64, then n equals 8, where n2 equals 64 is the hypothesis, and n equals 8 is the conclusion. In order to obtain the converse of the conditional we reverse the 2 clauses, then the original conclusion becomes the new hypothesis and the original hypothesis becomes the new conclusion. So that, Converse: If n equals 8, then n2 equals 64.
4
so 3n2 = 15 ie n2 = 5 so n = sqrt 5
If: n squared -n -90 = 0 Then the solutions are: n = 10 or n = -9
n x n = n2