यदि `A xx B` = {(a, 3), (a, 5), (b, 3), (b, 5), (c, 3), (c, 5)}, तो `B xx A` ज्ञात कीजिए ।

if A xx B ={(1,3)(1,5)(2,3)(2,5)(3,3)(3,5)} I . find A and B ii. Find A xx A

यदि "(3+4i)/(4-5i)=a+ib" हो,तो "*a'" और ' "b" ज्ञात कीजिए। "

Let A= {1, 2, 3}, B= {3, 4} and C= {4, 5, 6}. Find A xx (B nn C)

If A = (5,6),B = (4,5,6), C = (5,6,7), show that A xx A = (B xx B) cap (C xx C )

Let A= {1, 2, 3}, B= {3, 4} and C= {4, 5, 6}. Find (A xx B) nn (A xx C)

Let A= {1, 2, 3}, B= {3, 4} and C= {4, 5, 6}. Find (A xx B) uu (A xx C)

Let A= {1, 2}, B = {1, 2, 3, 4}, C = {5, 6} andD = {5, 6, 7, 8}. Verify that A xx (B nn C) = (A xx B) nn (A xx C) .

If A : B = 2 : 3, B : C = 4 : 5 and C : D = 6 : 7, then the value of (A+B+C)/D is : यदि A : B = 2 : 3, B : C = 4 : 5 और C : D = 6 : 7 है, तो (A+B+C)/D का मान क्या होगा ?