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4.1^-3.1 divided by 3.3^3

This is a part of a much larger problem. I think this is where I am getting it wrong. How do I deal with these exponents correctly and then divide? Thanks.

4.1^-3.1 divided by 3.3^3

1/4.1^3.1 / 3.3^3

1/79.365 / 35.937

1/79.365 / 1/35.937

1/2.208
0
kadin
Asked:
kadin
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2 Solutions
 
phoffricCommented:
1/79.365 / 35.937

= (1/79.365) / 35.937
= 0.0126 / 35.937

0
 
kadinAuthor Commented:
Are you saying the rest of what I did above this last part is correct and all I have to do is what you suggest more near the bottom of this problem? Thanks.
0
 
phoffricCommented:
a/b/c = (a/b)/c =

 [  a  ]
 [ --- ]
 [  b  ]
_____
   c

Multiply numerator and denominator by b:
 [  a  ]
 [ --- ] * b
 [  b  ]
_____
   c * b

   a
 -----
 c*b

= a/ (c*b)

So,
( 1/79.365 ) / 35.937 = 1 / ( 79.365 * 35.937  ) = 1/ 2852.14
0
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phoffricCommented:
(4.1^-3.1) divided by (3.3^3)

(4.1^-3.1)  =  1/ ( 4.1^3.1 )      (good)

4.1^3.1 = 79.365171              (good)

(4.1^-3.1)  = 1/ ( 4.1^3.1 ) = 1/79.365171              (good)

3.3^3 = 35.937                      (good)

( 1/79.365 ) / 35.937             (good)


0
 
kadinAuthor Commented:
Thanks. I am learning.
0
 
phoffricCommented:
Indeed. I see the improvement already.
0

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