If `[[2a+b,3a-b],[c+2d,2c-d]]=[[2,3],[4,-1]]`.find a,b,c and d.

Let B=[[-3,-4],[-1,-2]],C=[[0,3],[3,2]] and D=[[4,-2,5],[3,-1,3]] verify that (B+C)D=BD+CD

For an A.P.: 2,-2,-6,-10,…. find d . a) -4 b) 2 c) 4 d) 1

Let A and B be two sets such that n(A)=5\ a n d\ n(B)=2,\ if\ a ,\ b ,\ c ,\ d ,\ e are distinct and (a ,2),\ (b ,3),\ (c ,2),\ (d ,3),\ (e ,2) are in AxxB , find A and B.

Select and write the correct answer from the given alternatives in each of the following:If D_1=|(a+b,b+c,c+a),(b+c,c+a,a+b),(c+a,a+b,b+c)| and D_2=|(a,b,c),(b,c,a),(c,a,b)|

If A(1,2,3),B(4,5,7) ,C(-4,3,-6) and D(2,9,2) are four given points then find the angle between the lines AB and CD. a) (pi)/(6) b) (pi)/(4) c) (pi)/(3) d) 0

If the line through the points (3,1,2) and (4,lambda,0) is parallel to the line through the points (1,2,1) and (2,3,-1) , find lambda . a)1 b)2 c)3 d)4

If A = {a,b,c} , B={b,c,d} and C = {a,d,c}, then (A-B)xx (B nnC)=

If the sides of a triangle are b - 3a + 2c , a + 3b - 3c and 2a - b + c , then find its perimeter .