Thanks Jwei88, Ricardo, Philo, Abs, and Abdulkerim: but here is an example and my question is WHY THE PROCESS DOES NOT WORK FOR A WHOLE NUMBER? SQRT(1/4) = (1/4)^(1/2) = 1/4 * 2/1 = 2/4 = 1/2 so I found it !!
NOW, IT WON'T WORK FOR 10,000, Look:
SQRT(10,000) = (10,000) ^ (1/2) = 10,000 * 2/1 = 2/10,000 = 5,000????? and I am nuts here! is the solution to factorize every whole number?
WHY WON'T IT WORK (ALGEBRA, POWER)?
2008-12-25 6:10 pm
回答 (5)
2008-12-25 6:47 pm
✔ 最佳答案
when you do any thing that have square root or powerpower cannot be change to inverse fraction
first one
√(1/4)
looked at the denominator of 4
=√(1/4)
=√1/√4
=1/2
when ever you have square root with fraction you can separate it top & bottom.
second one
√10,000
you know 10^2 is 100
√100 is 10
what give number squared to give you 10,000
x^2 is 10,000
√10,000 is 100
because is multiply
100*100 will give 10,000
100 is the correct answer for second one
2008-12-26 6:08 pm
This seems rather a long story !
(1/4)^(1/2) = 1/2
10,000^(1/2) = (10^4)^(1/2) = 10 ² = 100
Have taken +â only.
If desired , can show as 屉
(1/4)^(1/2) = 1/2
10,000^(1/2) = (10^4)^(1/2) = 10 ² = 100
Have taken +â only.
If desired , can show as 屉
2008-12-26 3:57 am
positive and negative 100
2008-12-26 2:21 am
WHY THE PROCESS DOES NOT WORK FOR A WHOLE NUMBER? It's not supposed to.
2^2 = 4
2^2 = 2+2 = 4
3^2 = 9
3^2 = 3+3 = 6 Doesn't work ,not supposed to.
2^2 = 4
2^2 = 2+2 = 4
3^2 = 9
3^2 = 3+3 = 6 Doesn't work ,not supposed to.
2008-12-26 2:17 am
屉(1/4) = 1/4^(1/2) = 1/4 * 2/1 ...
(this process is wrong.)
1)
屉(1/4)
= 屉(1/2 * 1/2)
= ±1/2 (+1/2 or -1/2)
2)
屉10000
= 屉(100 * 100)
= ±100
(this process is wrong.)
1)
屉(1/4)
= 屉(1/2 * 1/2)
= ±1/2 (+1/2 or -1/2)
2)
屉10000
= 屉(100 * 100)
= ±100
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