Precalculus : Find the Product of a Matrix and a Scalar

Study concepts, example questions & explanations for Precalculus

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Example Questions

Example Question #11 : Find The Product Of A Matrix And A Scalar

Find 3A given:

Possible Answers:

Not possible

Correct answer:

Explanation:

To multiply a scalar and a matrix, simly multiply each number in the matrix by the scalar. Thus,

Example Question #1 : How To Find Scalar Interactions With A Matrix

If , what is ?

Possible Answers:

Correct answer:

Explanation:

Begin by distributing the fraction through the matrix on the left side of the equation. This will simplify the contents, given that they are factors of :

Now, this means that your equation looks like:

This simply means:

and

 or 

Therefore, 

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