Answer:
Cosine
Step-by-step explanation:
If the triangle is not right-angled, and there is not a matching pair, you will need the Cosine Rule..
and the formula used will be:
In the opposite case if the triangle is not right-angled, and there is a matching pair, you will need the Sine Rule..
The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A it is true.
The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A. A determinant of an n×n matrix can be defined as a sum of multiples of determinants of (n−1)×(n−1) sub matrices.
This is done by deleting the row and column which the elements belong and then finding the determinant by considering the remaining elements. Then find the co factor of the elements. It is done by multiplying the minor of the element with -1i+j. If Mij is the minor, then co factor,
+
.
Each element in a square matrix has its own minor. The minor is the value of the determinant of the matrix that results from crossing out the row and column of the element .
Learn more about the minor of the matrix here:
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Answer:
A=8.4063
Step-by-step explanation:
Be the functions:
according the graph:
