If `A={1,3,5, B}a n d\ B={2,4}` , then `4 in A` b. `{4}subA` c. `BsubA` d. none of these

If A={1,3,5,B} and B={2,4}, then 4in A b.{4}sub A c.B sub A d.none of these

If ^n C_3+^n C_4>^(n+1)C_3 , then a. n >6 b. n >7 c. n<6 d. none of these

If n(A nn B)=3,n(A)=5,n(B)=4, then n(A xx B)+n(A uu B)20 b.9 c.26d .none of these

A\ (6,3),\ B(-3,5),\ C(4,-2)\ a n d\ D(x ,3x) are four points. If "Delta"D B C :"Delta"A B C=1:2, then x is equal to a. 11/8 b. 8/11 c. 3 d. none of these

(2^3)^4 = 2^4^3 (b) 2^3^4 (2^4)^3 (d) none of these

Let three matrices A=[2 1 4 1]; B=[3 4 2 3]a n dC=[3-4-2 3], then 6 (b) 9 (c) 12 (d) None of these

If n(A)=2 and total number of relations from A to B is 1024, then number of elements in B is (A) 4 (B) 5 (C) 6 (D) none of these

Q.4 If A= [[0,1,-2],[-1,0,5],[2,5,0]] , then (a)A'=A (b)A'=-A (c)A'=2A (d) None of these

Area of the triangle formed by the points ((a+3)(a+4),\ a+3),\ ((a+2)(a+3),(a+2))a n d\ (a+1),\ (a+2),\ (a+1) is 25 a^2 b. 5^2 c. 24 a^2 d. none of these

If a:b=3:4, then 4a:3b=4:3(b)3:41:1 (d) None of these