Question

if x is equal to 3 + 2 root 2 find the value of root x minus one by root x​

Answer 1

ANSWER

Step-by-step explanation:

x=3+2√2

x=1+2√2+2

x=1+(2×1×√2)+2

x=(1+√2)^2

x=(√2+1)^2

√x=√2+1

Now,

1/√x=1/√2+1

√x- 1/√x= √2+1-√2+1

=2