2007-04-26 20:54:50 · 11 answers · asked by LittleMissSunshine 3 in Science & Mathematics ➔ Mathematics
cube root of -7 = -1.912931183 (just work it out on ur calculator and u'll end up with that!
2007-04-27 19:44:31 · answer #1 · answered by ♥ Victory ♥ 3 · 0⤊ 0⤋
The cube root of - 7 is -1.912931183
2007-04-27 04:11:20 · answer #2 · answered by giftedman88 3 · 0⤊ 0⤋
The cube root of -7 is -1.912931183...
2007-04-27 05:36:35 · answer #3 · answered by Akshitha 5 · 0⤊ 0⤋
There are THREE DISTINCT CUBE ROOTS of - 7:
1.912931183... multiplied by either :
a.) - 1, or
b.) [1 + sqrt(3) i] / 2, or
c.) [1 - sqrt(3) i] / 2,
where ' i ' is the symbol for the imaginary square root of (- 1).
Note that all of the above "multipliers" a., b., and c. are themselves the three different cube roots of - 1.
Live long and prosper.
2007-04-27 04:11:24 · answer #4 · answered by Dr Spock 6 · 1⤊ 1⤋
-1.912......
(as a check) -2 X -2 X - 2 = -8
(At a higher level there are two more answers but that gets a little complex)
2007-04-27 04:13:05 · answer #5 · answered by welcome news 6 · 0⤊ 0⤋
(-7)^1/3=
Abs(7^1/3)*e^(i pi/3)=1.91293*(0.5+ 0.866025 i)
Abs(7^1/3)*e^(i 3*pi/3)=1.91293*(-1)
Abs(7^1/3)*e^(i 5*pi/3)=1.91293*(0.5 - 0.866025 i)
2007-04-27 04:21:41 · answer #6 · answered by anime_insomnia 1 · 0⤊ 0⤋
cubicroot(-7)=-cubicroot(7)= -1.91
2007-04-27 04:17:21 · answer #7 · answered by babilla1983 1 · 0⤊ 0⤋
I think it would be: 2.6457513
2007-04-27 04:11:04 · answer #8 · answered by Cleve T 3 · 0⤊ 1⤋
-1.912931183
2007-04-27 04:12:22 · answer #9 · answered by industrie 3 · 0⤊ 0⤋
-1.9129311827723891011991168395488
2007-04-27 04:10:56 · answer #10 · answered by Will 3 · 0⤊ 0⤋