Question

A={1,2} , B={3,4} |A∆B|=?​

Answer 1

$\huge{\blue{\boxed{\green{\boxed{\red{\boxed{\bf{\mathtt{\purple{..A}\orange{n}\pink{s}\red{w}\blue{e}\green{r..}}}}}}}}}}$

◆━━━━━━━▣✦▣━━━━━━━━◆

 ➺A∆B which is called the symmetric difference between A and B is defined as (A-B)U(B-A).

Now, A-B is the set of all elements which are in A but not in B. So, A - B = {1,2}

Similarly, B-A is the set of all elements which are in B but not in A. So, B - A = {3,4}.

Hence A ∆ B = (A-B)U(B-A) = {1,2,3,4}

◆━━━━━━━▣✦▣━━━━━━━━◆

☆✿╬ʜᴏᴘᴇ ɪᴛ ʜᴇʟᴘs ᴜ╬✿☆

$\large{\dag{\purple{\bold{HIT_LIKE}}}}$

$\large{\leadsto{\orange{\bold{Brainliest}}}}$

❤️▃▃▃▃▃$\small\boxed{\fcolorbox{red}{black} {Stylish-here}}$▃▃▃▃▃❤️

Answer 2

Answer:

answer is {1,2,3,4,}

Step-by-step explanation:

mark as BRAINLIEST