Question

Help? I don’t know the answer

Answer 1

The correct answer is last option

| 12 -24 |

| 8 16 |

Explanation:

It is given a matrix A

A = | 6 -12 |

| 4 8 |

Also given that another matrix X such that X/2 = A

We have to find the matrix X

To find the matrix X

We can write X = 2 * A

2 * A = 2 * | 6 -12 | = | 12 -24 |

| 4 8 | | 8 16 |

Therefore the correct answer is last option

Answer 2

D

Explanation:

The question is about multiplication of matrices

Given matrix A as [6 -12]

[4 8]

if 1/2x= A

then x=2A

A={6 -12}

{4 8}

x=twice A or A +A

solving for 2A

2A=(2×6 2×-12)

(2×4 2×8)

2A= (12 -24)

(8 16)