Rationalise the denominator of 1/5-√7
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5
Answer:
5 + √7
18
Step-by-step explanation:
⇒ 1 x 5 + √7
5-√7 x 5 + √7
⇒ 5 + √7
5² - 7
⇒ 5 + √7
25 - 7
⇒ 5 + √7
18
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