If -123- A -45- the order of matrix A isA- 3 - 2B- 3 - 1C- 2 - 3D- 2 - 1

The correct option is A 3 x 2 If order of matrix A is m × n and order of matrix B is n × p then, order of AB = m × p, Here Order of [1 2 3] = 1 × 3 Order of [4 ...

You visited us 6 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard X

Mathematics

Multiplication of Matrices

If [123] A =[...

Question

If [1 2 3] A = [4 5], the order of matrix A is

3 x 2

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

3 x 1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

2 x 3

No worries! We‘ve got your back. Try BYJU‘S free classes today!

2 x 1

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A
3 x 2

If order of matrix A is m $\times$ n and order of matrix B is n $\times$ p then,

order of AB = m $\times$ p, Here

Order of [1 2 3] = 1 $\times$ 3

Order of [4 5] = 1 $\times$ 2

$∴$ Order of A is 3 $\times$ 2

Suggest Corrections

Similar questions

If [1 2 3] A = [4 5], the order of matrix A is

Q. In a

△ A B C

, if

tan A tan B = 3

, then the value of

\frac{cos C}{cos A cos B}

$Solve for a:$

$3 \times 1^{2} + 6 a + 2 = 29$

In ΔABC, right angled at B, if cot A = √3 then the value of cos A x sin C + sin A x cos C =

Q. If the parabola

y = - x^{2} - 2 x + k

touches the parabola

y = - \frac{1}{2} x^{2} - 4 x + 3

, then the value of

k

Join BYJU'S Learning Program

If [1 2 3] A = [4 5], the order of matrix A is

The correct option is A 3 x 2 If order of matrix A is m × n and order of matrix B is n × p then, order of AB = m × p, Here Order of [1 2 3] = 1 × 3 Order of [4 5] = 1 × 2 ∴ Order of A is 3 × 2

The correct option is A
3 x 2

If order of matrix A is m $\times$ n and order of matrix B is n $\times$ p then,

order of AB = m $\times$ p, Here

Order of [1 2 3] = 1 $\times$ 3

Order of [4 5] = 1 $\times$ 2

$∴$ Order of A is 3 $\times$ 2