Question

What will be the cardinal number of the set : D = {x | x €N & x² < 3x + 2 = 0}​

Answer 1

Hello mate,

Answer:

n(D)={} or 0

Step-by-step explanation:

x² < 3x + 2 =0

3x= -2

x= -2/3

x² < -2/3

and x €N

Natural numbers does not contain any negative number.

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