Show that the function
is many - one into.
Find (i) (ii) (iii)
(iv)
(i)
Here, x = 1/2,which is rational
∴f(1/2) = 1
(ii)
Here, x = √2,which is irrational
∴f(√2) = - 1
(iii)
Here, x = ∏, which is irrational
= - 1
(iv)
Here,x = 2 + √3, which is irrational
∴f(2 + √3) = - 1
Ans. (i) 1 (ii) - 1 (iii) - 1 (iv) - 1