Question

rationalise the denominator3 + 12
3- 12​

Answer 1

(√3+12) / (√3-12)

rationalise the denominator we get,

(√3+12)×(√3+12) / (√3-12)(√3+12)

= (3+24√3+144) / (3 - 144)

= (147+24√3)/-141