Maths-

General

Easy

Question

# If A = and A^{2} = , then

- = 2ab, = a
^{2} + b^{2}
- = a
^{2} + b^{2}, = ab
- = a
^{2} + b^{2}, = 2ab
- = a
^{2} + b^{2} , = a^{2} – b^{2}

^{2}+ b^{2}^{2}+ b^{2}, = ab^{2}+ b^{2}, = 2ab^{2}+ b^{2}, = a^{2}– b^{2}## The correct answer is: = a^{2} + b^{2}, = 2ab

### we are given A and and asked to find α and β

Therefore the correct option is choice 3

### Related Questions to study

maths-

### If A=, B = then AB =

### If A=, B = then AB =

maths-General

maths-

### If A =, B = and C =, then A^{2} = B^{2 }=C^{2} =

### If A =, B = and C =, then A^{2} = B^{2 }=C^{2} =

maths-General

maths-

### If Ai = and if |a|<1, |b|<1, thendet (A_{i}) is equal to-

### If Ai = and if |a|<1, |b|<1, thendet (A_{i}) is equal to-

maths-General

maths-

### If matrix A =and its inverse is denoted by, then the value of a_{23 }is equal to-

### If matrix A =and its inverse is denoted by, then the value of a_{23 }is equal to-

maths-General

Maths-

### For the matrix A =, which of the following is correct

### For the matrix A =, which of the following is correct

Maths-General

Maths-

### If a matrix A is such that3A^{3 }+ 2A^{2 }+ 5A + I = 0, then A^{–1 }is equal to-

### If a matrix A is such that3A^{3 }+ 2A^{2 }+ 5A + I = 0, then A^{–1 }is equal to-

Maths-General

Maths-

### Let F() =, where R. Then (F())–1 is equal to

### Let F() =, where R. Then (F())–1 is equal to

Maths-General

Maths-

### If A= and A^{2 }– kA – 5I_{2 }= O, then the value of k is-

### If A= and A^{2 }– kA – 5I_{2 }= O, then the value of k is-

Maths-General

Maths-

### If M =and M^{2 }– M – = 0, then equals -

### If M =and M^{2 }– M – = 0, then equals -

Maths-General

Maths-

### If =, then -

### If =, then -

Maths-General

Maths-

### If A = and (aI_{2} + bA)^{2} = A, then -

### If A = and (aI_{2} + bA)^{2} = A, then -

Maths-General

Maths-

### If A is invertible matrix, then det (A^{–1}) equals-

### If A is invertible matrix, then det (A^{–1}) equals-

Maths-General

maths-

### If D = diag (d_{1}, d_{2}, d_{3}, ...,d_{n}), where d_{1} 0 for all i = 1,2,....,n; then D^{–1} is equal to-

### If D = diag (d_{1}, d_{2}, d_{3}, ...,d_{n}), where d_{1} 0 for all i = 1,2,....,n; then D^{–1} is equal to-

maths-General

Maths-

### If A and B are square matrices such that AB = B and BA = A, then A^{2} + B^{2} is equal to-

### If A and B are square matrices such that AB = B and BA = A, then A^{2} + B^{2} is equal to-

Maths-General

Maths-

### If =, then which of following statement is true -

### If =, then which of following statement is true -

Maths-General