Question

If A = {1, 2, 3, 4, 5} and B = {3, 4, 5, 6, 7}
then, B - A is

Answer 1

$\huge\bf{\red{\overbrace{\underbrace{\purple{Given:}}}}}$

★A ={1, 2,3,4,5}

★B ={3, 4,5,6,7}

$\huge\bf{\red{\overbrace{\underbrace{\purple{To\:\:Find:}}}}}$

★ B - A.

$\huge\bf{\red {\overbrace{\underbrace{\purple{Concept\:\:Used:}}}}}$

★We will simply subtract the two sets.

$\huge\bf{\red {\overbrace{\underbrace{\purple{Answer:}}}}}$

$\huge\tt{Given}$ $\begin{cases} \hookrightarrow \: A ={1, 2,3,4,5}\\\hookrightarrow B={3, 4,5,6,7}\end{cases}$

What does subtraction of set means?

Subtraction of two sets (say A - B) means writing a set of elements which are in A but not in B.

$\implies B-A =\big\{3, 4,5,6,7\big\}-\big\{1, 2,3,4,5\big\}$

${\underline{\boxed{\red{.\degree. B-A=\big\{6,7\big\}}}}}$

Answer 2

Step-by-step explanation:

A={1,2,3,4,5}

B={3,4,5,6,7}

B-A={1,2,3,4,5,}-{3,4,5,6,7}

B-A={6,7}