Find the value of 7-3-1-21-343-1-343-1-49-

The correct option is C 1/343 We know that a^ m=1/a^m for any non zero integer a and integer m. 7^ 3 nbsp;= 1/7^3 nbsp; nbsp; nbsp; nbsp; nbsp ...

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Positive and Negative Indices

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Question

Find the value of $7^{- 3}$ .

$343$

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$\frac{1}{343}$

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$\frac{1}{21}$

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$\frac{1}{49}$

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Find the value of $a$ in the following proportion.

$4 : 7 : : a : 49$

Find the value of:
(i) ${(\frac{5}{8})}^{- 1}$
(ii) ${(\frac{- 4}{9})}^{- 1}$
(iii) $(- 7)^{- 1}$
(iv) ${(\frac{1}{- 3})}^{- 1}$

7 \times (343)^{\frac{1}{3}} \times \frac{49^{\frac{1}{2} - 49^{- \frac{1}{2}}}}{7} =

\sqrt{49} = 7

\sqrt{49} + \sqrt{0.49} + \sqrt{0.0049} + \sqrt{0.000049}

The value of $(343)^{\frac{1}{3}} \times (64)^{\frac{1}{3}}$ is

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