1 answer:
Answer:
||| First row: 11 -20 23 ||| Second row: -21 5 -24 ||| Third row: 6 9 -14 |||
Step-by-step explanation:
I wish I could explain it better, but all I did was plug it into matrix A on:
https://atozmath.com/matrix.aspx?q=minor
I pressed "find" without changing any of the settings, and scrolled down until I saw what was in the attached screenshot.
Each of the rows correspond to the first, second, and third answers, as you can see.
I hope this helps!
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Answer:
Step-by-step explanation:
Incomplete question:
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<em>See attachment for complete question</em>
Required
Determine the equation to find x
First, is to complete the angles of the triangle (ABC and ACB)
--- angle on a straight line
Collect like terms
--- angles in a triangle
Collect like terms
Apply sine rule
In this case:
This gives:
