The inverse of f(x)=2x-1 is

A (x-1)/2

B (x+1)/2

C 2x-1

D 2x+1

Correct Answer: Option B

দেওয়া আছে , f(x)=2x-1
ধরি, y=f(x)
y=2x-1
⇒ 2x-1=y
⇒ 2x=y+1
⇒ x=(y+1)/2
⇒ f^-1 (y)=(y+1)/2

[∴ y=f(x) f^-1(y)=x]

so, f^-1(x)=(x+1)/2