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If A = {1,2,3,4} B=N. Let f: A ➝ B be defined by f(x) = x² + 1then find the range of f.
Note: [Brainly sir / maam please solve my all Questions that I have posted in Brainly.]​

Sagot :

SalmonWorldTopper

EXPLANATION:

Given sets are A = { 1,2,3,4}

and B = N

Let f : A-->B ,f(x) = x² +1

Now Put x = 1 then

⇛f(1) = 1²+1 = 1+1 = 2

Now Put x = 2 then

⇛f(2) = 2²+1 = 4+1 = 5

Now Put x = 3 then

⇛f(3) = 3²+1 = 9+1 = 10

Now Put x = 4 then

⇛f(4) = 4²+1 = 16+1 = 17

Range of f(x) = { 2,5,10,17}

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