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Q.

If A=3,0,1,2 and f:A→B is an onto function defined by fx=3x-5 , then B is

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a

-2,-1,1,7

b

3,7,8

c

-1,3,7,8

d

-5,-2,1,4

answer is C.

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Detailed Solution

f(x)=3x-5

f(3)=9-5=4

f(0)=-5

f(1)=3-5=-2

f(2)=6-5=1

∴B=-5,-2,1,4

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