Question

Rationalise the denominator of
1/4+root 5​

Answer 1

Answer:

1/4+√5

multiple 4-√5 to numerator and denominator

1×(4-√5)/ 4+√5 × (4-√5)

4-√5/4^2 - (√5)^2 (using (a + b)(a-b)=a^2 -b^2

4-√5/16-5

4-√5/11

hope done....