Question

A=the set of all letters in the word "mathematics" find AUB,AnB,A-B,B-A

Answer 1

Answer:

what is set B ?

if set B is geometry, the answer is given below.

Step-by-step explanation:

A = Set of all letters in the word

" mathematics"

A = { m,a,t,h,e,i,c,s }-------( 1 )

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B = Set of all letters in the word

" geometry "

B = { g,e,o,m,t,r,y } --------( 2 )

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i ) AUB={m,a,t,h,e,i,c,s}U{ g,e,o,m,t,r,y}

= { m,a,t,h,e,i,c,s,g,o,r,y }

= { a,c,e,g,h,i,m,o,r,s,t,y }

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ii ) A intersection B

= {m,a,t,h,e,i,c,s}intersection{g,e,o,m,t,r,y}

= { m , t , e }

= { e , m , t }

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iii ) A-B={m,a,t,h,e,i,c,s} - {g,e,o,m,t,r,y}

= { a , c, h, i , s }

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iv ) B-A = {g,e,o,m,t,r,y} - {m,a,t,h,e,i,c,s}

= { g ,o ,r ,y }