Question

a = 4/3-root 5 then find the value of a+4/a​

Answer 1

Answer:

answer is about. -13.4

Answer 2

a=4/3-√5

first of all rationalize it

a=3+√5

a+4/a=3+√5+4/3+√5

(3+√5)^2+4/3+√5

9+5+6√5+4/3+√5

18+6√5/3+√5

By rationalising the denominator

(18+6√5)(3-√5)/(3+√5)(3-√5)

54+18√5-18√5-30/9-5

24/4=6