Efan Halliday

2021-02-13

Matrices C and D are shown below

What values of a and b will make the equation CD=I true?

a)a=0.5 , b=0.1

b)a=0.1 , b=0.5

c)a=-0.5 , b=-0.1

Aniqa O'Neill

Skilled2021-02-14Added 100 answers

Step 1

The given matrices are,

Step 2

Now multiply the matrices C and D as shown below.

Step 3

Now equate the matrix CD to the identity matrix I and obtain the values of a and b as follows.

CD=I

Two matrices are equal , only if the corresponding elements are equal.

and

Step 4

Therefore, the CD = I is true for a = 0.5 and b =0.1.

Jeffrey Jordon

Expert2022-01-29Added 2605 answers

Answer is given below (on video)

22+64

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