Question

Q.30. How much is x ^ 2 + 1 greater than y ^ 2 ?

(A) * y ^ 2 - x ^ 2 - 1
(B) y ^ 2 - x ^ 2 + 1
(C) - y ^ 2 - x ^ 2 - 1
(D) x ^ 2 + 1 - y ^ 2​

Answer 1

A = {a, b, c}, B = {b, c, d} and C = {a, d, c}, then (A - B) x (B ∩ C) is equal to (1) {(a, c), (a, d)} (2) {(a,b),(c,d)} (3) {(c, a), (d, a)} (4) {(a, c), (a, d), (b, d)}

A = {a, b, c}, B = {b, c, d} and C = {a, d, c}, then (A - B) x (B intersection C) is equal to (1) {(a, c), (a, d)} (2) {(a,b),(c,d)} (3) {(c, a), (d, a)} (4) {(a, c), (a, d), (b, d)}

a^x = b^y = c^z = d^u and a,b,c,d are in G.P., then x,y,z,u are in