Consider the following in respect of the matrix `A=({:(-1,1),(1,-1):})`:
1. `A^(2)=-A`
2. `A^(3)=4A`
Which of the above is/are correct ?

Consider the following in respect of a complex number Z : 1. bar((Z^(-1)))=(barZ)^(-1) 2. Z Z^(-1) =|Z|^(2) Which of the above is/are correct?

Consider the following inequalities in respect of any triangle ABC : 1. AC-ABltBC 2. BC- ACltAB 3. AB-BCltAC Which of the above are correct ?

The rank of the matrix A={:[(1,2,3,4),(4,3,2,1)]:} , is

The rank of the matrix A={:[(1,2,3,4),(4,3,2,1)]:} , is

Consider the following in respect of the matrix: [{:(1,1,1),(1,1,1),(1,1,1):}] 1. Inverse of A does not exist. 2. A^(3) = A 3. 3A = A^(2) Which of the above are correct?

Which one of the following is correct in respect of the matrix ? [{:(0,0,-1),(0,-1,0),(-1,0,0):}] ?

Consider the following statements in respect of the matrix A=[{:(0,1,2),(-1,0,-3),(-2,3,0):}] 1. The matrix A is skew-symmetric. 2. The matrix A is symmetric. 3. The matrix A is invertible. Which of the above statements is/are correct ?

Consider the following statements in respect of the matrix A=[{:(0,1,2),(-1,0,-3),(-2,3,0):}] I. The matrix A is skew symmetric II. The matrix A is symmetric III. The matrix A is invertible Which of the above statements is/are correct ?

Consider the following in respect of the above figure : 1. triangleDAC ~ triangleEBC 2. CA/CB = CD/CE 3. AD/BE = CD/CE Which of the above are correct ?

Consider the following statements in respect of the set S={1,2,3…….n} : 1. (n+1)//2 is the median of the numbers in S. 2. n is the mode of the numbers in S Which of the above statements is/are correct