Fsc Part 1 Mathematics (Complete Solution)

Q9
Write down the power set of each of the following sets

(i) {9,11}

SOLUTION:

{Φ,{9},{11},{9,11}}

(ii) {+,-,x,÷ }

SOLUTION:

{Φ,{+},{-},{x},{÷},{+,-},{+,x},{+,÷},{-,x},{-,÷},{x,÷},{+,-,x},{+,-,÷},{+,x,÷},{-,x,÷},{+,-,x,÷} }

(iii) { Φ }

SOLUTION:

{  Φ  ,{Φ} }

(iv){a,{b,c}}

SOLUTION:

{Φ ,{a},{{b,c}},{a,{b,c} }

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