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3 years ago

Identify the domain of this function

Mathematics

2 answers:

slamgirl [31]3 years ago

7 0

When you think of domain, you always think x-values. so the domain values for this graph is (-∞,∞).

Alex17521 [72]3 years ago

7 0

This is a graph of sine. Domain is equal the set of all real numbers:

$D=\mathbb{R}=(-\infty,\ \infty)$

The domain is x-y, for which there is a graph.

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Answer:

Step-by-step explanation:

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valentina_108 [34]

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2 years ago

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Elena-2011 [213]

Answer:

Step-by-step explanation:

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2 years ago

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In-s [12.5K]

ANSWER

EXPLANATION

For a matrix A of order n×n, the cofactor $C_{ij}$ of element $a_{ij}$ is defined to be

$C_{ij} = (-1)^{i+j} M_{ij}$

$M_{ij}$ is the minor of element $a_{ij}$ equal to the determinant of the matrix we get by taking matrix A and deleting row i and column j.

Here, we have

$C_{11} = (-1)^{1+1} M_{11} = M_{11}$

M₁₁ is the determinant of the matrix that is matrix A with row 1 and column 1 removed. The bold entries are the row and the column we delete.

$\begin{aligned} A=\begin{bmatrix} \bf 1 & \bf -6 & \bf -4\\ \bf 7 & 0 & -3 \\ \bf -9 & 8 & -8 \end{bmatrix} \implies M_{11} &= \text{det}\left(\begin{bmatrix} 0&-3 \\ 8&-8 \end{bmatrix} \right) \end{aligned}$