2007-03-28 17:57:04 · 10 answers · asked by ツ 1 in Science & Mathematics ➔ Mathematics
(1 - (5^(1 / 2))) / 2 = -0.618033989
2007-03-28 18:00:11 · answer #1 · answered by Anonymous · 0⤊ 0⤋
(1-5^(1/2))/2 is nothing special, however (1+5^(1/2))/2 is the golden ratio which is 1.618033989.
2007-03-29 01:37:36 · answer #2 · answered by Alex M 2 · 0⤊ 0⤋
This is actually simultaneously
Phi - 1
and
1 / Phi
where Phi is the golden ratio, (1/2)(1 + sqrt(5))
2007-03-29 02:23:52 · answer #3 · answered by Anonymous · 0⤊ 0⤋
5^(1/2) mean sqrt of 5
1- sqrt 5 = -1.236067978
then divided by 2 = -0.618033988
2007-03-29 01:30:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Do you want a numerical answer because you can simply plug it into the calculator and get the answer.
Or you can simply approximate like this:
The expression is 1 minus the square root of 5, which is about 2.25 i would say, which equals -1.25.
then -1.25/2 is -.63 approximately.
2007-03-29 01:02:23 · answer #5 · answered by Anonymous · 0⤊ 0⤋
(1 - â5) : 2 =
(1 - 2.23) : 2 = -0.62 round
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2007-03-29 01:45:19 · answer #6 · answered by aeiou 7 · 0⤊ 0⤋
The answer is i.
the sq. rt of a negative number (here its -4) is an imaginary number designated in mathematics as "i". So, sq rt of -4 is 2i. 2i/2 = i
2007-03-29 01:02:24 · answer #7 · answered by Anonymous · 0⤊ 0⤋
approximately negative zero point sixty three
2007-03-29 01:21:01 · answer #8 · answered by Ralph 1 · 0⤊ 0⤋
its -0.618033988 according to my calculator...:)
2007-03-29 01:01:35 · answer #9 · answered by Roger M 2 · 0⤊ 0⤋
-.61803398874989484820458683436564
2007-03-29 01:00:36 · answer #10 · answered by ........ 5 · 0⤊ 0⤋