Answer:
f(y) = –1
y2 = –1
Domain of f – R,
Value of y2 i- non-negative
There is no real y for which y2 = –1.
∴{y: f(y) = –1} = ∅
Answer:
f(y) = –1
y2 = –1
Domain of f – R,
Value of y2 i- non-negative
There is no real y for which y2 = –1.
∴{y: f(y) = –1} = ∅