laila777
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#1
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#1
a=3^2b
Select the correct expression for 1/a
Is the answer 1/3^-2b
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Plücker
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#2
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#2
(Original post by laila777)
a=3^2b
Select the correct expression for 1/a
Is the answer 1/3^-2b
No.
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Charlie101998
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#3
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Isn’t it -(2b/3) ?
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laila777
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(Original post by Plücker)
No.
what is it then?
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davros
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#5
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#5
(Original post by laila777)
a=3^2b
Select the correct expression for 1/a
Is the answer 1/3^-2b
What is the equivalent form of 1/a in index form, i.e. a^n
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laila777
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#6
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(Original post by Plücker)
No.
-3^2b ?
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Timo werner
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#7
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#7
its 1/9^-b
Last edited by Timo werner; 10 months ago
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medscorer2020
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#8
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#8
You said select the correct answer so what are the options?
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Plücker
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#9
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#9
(Original post by laila777)
-3^2b ?
No.

\displaystyle \frac{1}{x^y}=\frac{x^0}{x^y}=x^{0-y}=x^{-y}
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Charlie101998
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#10
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Is it 3*2b?
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davros
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#11
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#11
(Original post by Charlie101998)
Is it 3*2b?
No, but I think we're all waiting to see if the OP comes back
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Peter.G
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#12
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#12
Its 3^-2b or 1/3^2b
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laila777
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#13
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#13
(Original post by xxthesmartbanana)
its 3^-2b or 1/3^2b
thank you
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