Question

Find the cube root of the following rational number

(i) -512/343

(ii) -686/-2662


please give both correct answer

if possible do in notebook

Its urgent.​
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Answer 1

Answer:

-512/343 = -8^3/7^3 = [-8/7]^3

-686/-2662 = [9/13]^3  approx

Step-by-step explanation:

Answer 2

Step-by-step explanation:

$1. \: \frac{ - 512}{343} \\ = \sqrt[3]{ \frac{ - 512}{343} } \\ = \sqrt[3]{ \frac{ { (- 8)}^{3} }{ {(7)}^{3} } } \\ = \frac{ - 8}{7} \\ \\ 2. \: \: \frac{686}{2662} \\ = \sqrt[3]{ \frac{686}{2662} } \\ = \sqrt[3]{ \frac{2 \times 7 \times 7 \times 7}{2 \times 11 \times 11 \times 11} } \\ = \sqrt[3]{ \frac{ {(7)}^{3} }{ {(11)}^{3} } } \\ = \frac{7}{11} \\ \\ Hope \: it \: helps \: you..... \\ Please \: mark \: my \: answer \: as \\ brainleist........$