Question

rationalise the dinominator √5+√3 / √5-√3​

Answer 1

Answer:

= 4-√15

Step-by-step explanation:

√5-√3/√5+√3

= (√5-√3)(√5-√3)/(√5-√3)√5+√3)

= √5²+√3²-2(√5)(√3) / √5²-√3²

= 5+3-2√15/5-3

= 8 - 2√15 / 2

= 2(4-√15)/2

= 4-√15

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