Question

if x=2-√5 find the value of x+1/x​

Answer 1

Answer:

given that

x=2-2root5

the 1/x=2+2root5

x+1/x=4

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

X=2-✓5

1/x=1/2-✓5

1/2-✓5×2+✓5/2+✓5

2+✓5/4-5

2+✓5

(2-✓5)(2+✓5)

4+2✓5-2✓5-5

4-5

-1 Ans