Question

1) Rationalise the
denominator of
$1 \div 5 + 3 \sqrt{2}$
(​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

Identity (a+ b) (a-b) = (a)² - (b)²

Step-by-step explanation:

• 1 ÷ 5 + 3√2

• 1 / 5+ 3√2 × 5 - 3√2 / 5 - 3√2

• = 5 - 3√2 / (5)² - (3√2)²

• = 5 - 3√2 / 25 - 18

• = 5 - 3 √2 / 7