Question

If a=underoot 2-1
Then a-1/a=?

Answer 1

under root minus one upon under root

hope it helps you please mark it as the brainliest

Answer 2

Answer:

here,

a = √2-1

so, a-1/a= √2-1-1/√2-1

= √2-2/√2-1

= (√2-2)(√2+1)/(√2-1)(√2+1)

= -√2

hope it helps ✨✨