Question -
Answer -
(i) A тИй B
A тИй B denotes A intersection B. Common elements of A and B consists in this set.
Given A тКВ B, every element of A are already an element of B.
тИ┤ A тИй B = A
(ii) A тЛГ B
A тИк B denotes A union B. Elements of either A or B or in both A and B consist in this set.
Given A тКВ B, B is having all elements including elements of A.
тИ┤ A тИк B = B