Question

please solve this question​

Answer 1

Answer:

$\frac{4}{5 \sqrt{5} } \times \frac{5 \sqrt{5} }{5 \sqrt{5} } = \frac{20 \sqrt{5} }{25 \times 5} \\ = \frac{4 \sqrt{5} }{5}$

Step-by-step explanation:

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Answer 2

Answer

4/5✓5

4/4✓5*-4✓5/-4✓5

4[-4✓5] /(4)^ *(5)^ {a✓b*-a✓b=(a)^*(b)^}

-16✓5/4*5

-16✓5/20

-4✓5/5