rationalise the denominator 3√5+√3/√5-√3
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Answered by
1
Answer:
9 + 2√15
Step-by-step explanation:
= (3√5 + √3)/ (√5 - √3)
= (3√5 + √3)/ (√5 - √3) × (√5 + √3) / (√5 + √3)
= 3√5 (√5 + √3) + √3(√5 + √3) / √5(√5 + √3) - √3(√5 + √3)
= (3√25 + 3√15 + √15 + √9) / (√25 - √9)
= (15 + 4√15 + 3)/(5 - 3)
= (18 + 4√15) / 2
= 9 + 2√15
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1
Answer:
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