`R`
`( - oo , 1)`
`(1, oo)`
`(2/3 , oo)`
`(-3 , 3)`
`[-3 , 3]`
`(-oo , -3 ) uu (3 , oo)`
`(-oo , -3] uu [3 , oo)`
`] - 3 , - 2 .5 [ cup ] - 2.5 - 2 [`
`[-2 , 0 [ cup] 0 , 1 [`
`] 0 ,1 [`
None of these
` (- 3 , 1/3 )`
`[ -3, 1/3]`
`[ -3 , 1/3)`
None of these
`{1,2, 3, 4,5}`
`{1, 2, 3, 4, 5, 6}`
`{1, 2, 3, 4}`
`{1, 2, 3}`
f is one-one onto
f is one-one into
f is many one onto
f is many one into
y = R
`y = [1, oo)`
`y = [ 4, oo ]`
`y = [ 5, oo ]`
I and II only
II and III only
III and I only
I, Ilandlll