Question

Rationalise the following based on the above examples and explanation:
$1 \sqrt{7}$
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Answer 1

Answer:

heya mate ☺

$1 \sqrt{7} \times 1 \sqrt{7} \\ \\ = 1( \sqrt{7} ) ^{2} \\ \\ = 1 \times 7 \\ \\ = 7$

hope it helps u ✅