If `Aa n dB` are symmetric matrices of the same order and `X=A B+B Aa n dY=A B-B A ,t h e n(X Y)^T` is equal to `X Y` b. `Y X` c. `-Y X` d. none of these

If A and B are symmetric matrices of the same order and X=AB+BA and Y=AB-BA , then (XY)^(T) is equal to

If A and B are symmetric matrices of the same order and X=AB+BA and Y=AB-BA, then (XY)^(T) is equal to XY b.YX c.-YX d.none of these

If A and B are symmetric matrices of the same order the X = AB + BA and Y = AB-BA, then XY^(T) is equal to a)XY b)YX c) -YX d)None of these

if Aa n dB are squares matrices such that A^(2006)=Oa n dA B=A+B ,t h e n"det"(B) equals 0 b. 1 c. -1 d. none of these

if Aa n dB are squares matrices such that A^(2006)=Oa n dA B=A+B ,t h e n"det"(B) equals 0 b. 1 c. -1 d. none of these

If Aa n dB are two non-singular matrices such that A B=C ,t h e n|B| is equal to (|C|)/(|A|) b. (|A|)/(|C|) c. |C| d. none of these

If a x^2+2h x y+b y^2=0, then (dy)/(dx) is equal to y/x (b) x/y (c) (d) None of these

If a x^2+2h x y+b y^2=0, then (dy)/(dx) is equal to y/x (b) x/y (c) (d) None of these

If a ,b , a n dc are in G.P. and x ,y , respectively, are the arithmetic means between a ,b ,a n db ,c , then the value of a/x+c/y is 1 b. 2 c. 1//2 d. none of these

If a ,b , a n dc are in G.P. and x ,y , respectively, are the arithmetic means between a ,b ,a n db ,c , then the value of a/x+c/y is 1 b. 2 c. 1//2 d. none of these