4^(-1/2)=?

2 ⤊

2007-04-29 10:23:31 · 4 answers · asked by heartbreaker8082 1 in Science & Mathematics ➔ Mathematics

4 answers

a^(-x) = 1/(a^x)

So 4^(-1/2) = 1/(4^(1/2)) = 1/2

2007-04-29 10:25:59 · answer #1 · answered by Anonymous · 2⤊ 0⤋

= 1 / 4^(1/2)
= 1 / â4
= 1 / 2

2007-04-29 17:28:55 · answer #2 · answered by Como 7 · 0⤊ 0⤋

= 1/(4^(1/2))

= 1/2
.

2007-04-29 17:28:46 · answer #3 · answered by Robert L 7 · 0⤊ 0⤋

Any time you have a negative exponent for a value, it indicates that you need to take the recipricol. For instance x^(-1) = 1/x. So...

4^(-1/2) = 1/[4^(1/2)]

The 1/2 power is, in fact the square root function. So...

1/[4^(1/2)] = 1/â4 = 1/2

Your answer is 1/2

2007-04-29 17:27:25 · answer #4 · answered by Bhajun Singh 4 · 0⤊ 0⤋