2007-09-06 08:42:54 · 4 answers · asked by jessie 1 in Science & Mathematics ➔ Mathematics
No, 2^1 = 2...
So 2^1 - 1 = 2 - 1 = 1, which is not equal to 0.
2007-09-06 08:47:16 · answer #1 · answered by Anonymous · 1⤊ 0⤋
It is if it make the statement true!
You're asking if
2^1 - 1 = 0
No, that 's not a true statement. Two is not a solution to
x^1 - 1 = 0
Anything to the 1 power is just itself. So this equation is
equivalent to:
x-1 = 0
You know what the solution to that one is.
note that
x^0 = 1 for any non-zero x.
so that
x^0 -1 = 0
has solutions any non-zero x.
2007-09-06 15:50:30 · answer #2 · answered by modulo_function 7 · 0⤊ 1⤋
x^1-1=0 or x-1=0
so x=1 is only solution.
2007-09-06 15:49:05 · answer #3 · answered by MAHAANIM07 4 · 0⤊ 1⤋
x^1 - 1 = 2
x^1 = 2 -1
x^1 = 1
x = 1
NB All numbers when not indexed, are read as that number to the power 1. e.g.
Taking '2' as an example, this is 2^1, but unless calculations include indices, the index(power) is not shown, it is just written as '2'.
2007-09-06 15:50:41 · answer #4 · answered by lenpol7 7 · 0⤊ 1⤋