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3 years ago

2. Help ASAP!!!!!!!!!!!!!!!!

Mathematics

2 answers:

ch4aika [34]3 years ago

8 0

ANSWER

$2 \times 2$

EXPLANATION

The dimensions of a matrix is of the form:

$Row \times Column$

The dimensions of the first matrix is

$2 \times 3$

The dimensions of the second matrix is

$3 \times 2$

Since the inner products are the same,the outer products give the dimensions of the product of the two matrices.

$(2 \times 3)(3 \times 2) = 2 \times 2$

Therefore the dimensions of the product is a 2×2 matrix.

viktelen [127]3 years ago

4 0

Answer:

The correct answer is second option

2 x 2

Step-by-step explanation:

It is given two matrices. One is (2 x 3) matrix and the second matrix is (3 x 2) matrix.

<u>To find the dimension of matrix</u>

If we multiply two matrices with dimensions px q and q x p then the resultant matrix have diamension p x p

Here the two matrices have dimensions 2x3 and 3x2.

Therefore resultant matrix with dimensions 2 x 2

The correct answer is option 2

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Step-by-step explanation:

When a terminal side of an angle intersect the unit circle at

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- According to the 1st and 2nd notes above

∴ cosФ = x-coordinate of the point

∴ sinФ = y-coordinate of the point

∵ The x-coordinate of the point is negative

∵ They-coordinate of the point is positive

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∴ Angle Ф lies in the 2nd quadrant

∵ x-coordinate = $\frac{-\sqrt{2} }{2}$

∴ cosФ = $\frac{-\sqrt{2} }{2}$

∵ y-coordinate = $\frac{\sqrt{2} }{2}$

∴ sinФ = $\frac{\sqrt{2} }{2}$

- cotФ is the reciprocal of tanФ

∵ tanФ = sinФ ÷ cosФ

∴ cotФ = cosФ ÷ sinФ

∴ cotФ = $\frac{-\sqrt{2} }{2}$ ÷ $\frac{\sqrt{2} }{2}$

∴ cotФ = -1

The values of cosine Ф and cotangent Ф are $\frac{-\sqrt{2} }{2}$ and -1

Learn more:

You can learn more about the trigonometry function in brainly.com/question/4924817

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