Question

A is the subset of B, then A union B=B.Is it True or False?​

Answer 1

A set A is a subset of B if and only if their union is equal to B.

Answer 2

$\huge\pink{\mathfrak{answer}}$

True

$\huge\pink{\mathfrak{explanation}}$

A set A is a subset of B if and only if their union is equal to B.