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Mathematics 9 Online
OpenStudy (anonymous):

Radical expressions question

OpenStudy (anonymous):

I got 3^1/20 but I have no idea how to write this in radical form

Parth (parthkohli):

\( \color{Black}{\Rightarrow \Large {3}^{1 \over 4} \cdot 3^{1 \over 5} }\) When the base is same, you add the powers :)

OpenStudy (anonymous):

how would you write that in a radical expression?

OpenStudy (anonymous):

In power, it will come 9/20...

OpenStudy (anonymous):

sorry, yes i meant 9^1/20

Parth (parthkohli):

\( \color{Black}{\Rightarrow \Large 3^{9 \over 20} }\) \( \color{Black}{\Rightarrow \sqrt[20]{9^{\large 9}}}\)

Parth (parthkohli):

As \(\Large a^{x \over y} = \sqrt[y]{a^x}\)

OpenStudy (anonymous):

\[(3)^{1/4} \times (3)^{1/5} = (3)^{(1/4 + 1/5)} = (3)^{9/20}\]

OpenStudy (anonymous):

OHHHH i see now

OpenStudy (anonymous):

@ParthKohli there will come 3 power 9 in the root term...

Parth (parthkohli):

That's what I have written, my kind sir.

OpenStudy (anonymous):

That is written by you only nobody came and wrote their my dear friend...

Parth (parthkohli):

What? o.O

OpenStudy (anonymous):

\[\sqrt[20]{3^9}\] must come there...

OpenStudy (anonymous):

thank you very much for your help, both of you

Parth (parthkohli):

Exactly what I have written >.<

OpenStudy (anonymous):

You have written 9 power 3 not 3 power 9...

OpenStudy (anonymous):

Welcome dear...

Parth (parthkohli):

Oh yea lol

Parth (parthkohli):

sorry

OpenStudy (anonymous):

Don't say sorry now...

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