1.

If A = { x : (-2)/(5) le x le (pi-2)/(5)}, B = { y : - 1 le y le 1} and f(x)= cos (5x+2) then the mapping f: A rarr B is

Answer»

One-one but not onto.
onto but not one-one.
Both one-one and onto
Neither one-one nor onto

Answer :C


Discussion

No Comment Found