Rationalise the denominator
2/7+4√3
Thank In Advance…
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Answer: 14 - 8√3
Step-by-step explanation:
2÷7+4√3
Multiply and divide by 7 - 4√3
=> (2 ÷ 7 +4√3) × (7 - 4√3 ÷ 7 - 4√3)
=> 2(7 - 4√3) ÷ [(7-4√3) × (7+4√3)]
=> 14 - 8√3 ÷ 7² - (4√3)² [(a-b) (a+b) = a² - b²]
=> 14 - 8√3 ÷ (49 - 48)
=> 14 - 8√3 ÷ 1
=> 14 - 8√3
Hope it helps.....
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