If (1+m)n=n, which of the following must be true?
Pick
A) m=-1 or n=0 B) m=0 or n=0 C) m=1 or n=1 D) m=-1 or n=-1 E) m=0 or n=1
By only having mn=0, we cannot say answer is B as A and E options also satisfy the condition mn=0. ans m=0 or n=0
<result>B</result>
If (1+m)n=n, which of the following must be true?