English, asked by yash7136, 11 months ago

answer it on a sheet of paper plz plz plZ
( \frac{2}{9} ) {}^{3}  \times  (\frac{2}{9} ) {}^{ - 5}

Answers

Answered by StarrySoul
29

\huge\mathcal{Answer:}

If x is a rational number and a,b are rational exponents, then

 {x}^{a}   \times  {x}^{b}  = x ^{a + b}

Here,

Let's consider 2/9 as x and power as a and b

Then,

 (\frac{2}{9} ) ^{3}  \times  (\frac{2}{9} ) ^{ - 5}

 (\frac{2}{9} ) ^{3 + ( - 5)}

Always remember + × - = -

( \frac{2}{9} ) ^{3 - 5}

 (\frac{2}{9}   )^{ - 2}

If exponent is negative then we reciprocal the number

 (\frac{9}{2}  )^{2}  \:  \:  \: or  \:  \:  \frac{81}{4}

For be more clear refer to attachment

Attachments:
Answered by SainaPaswan
5

Here is your answer!!

Thanks!

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