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# Law of Sines

## Proportion based on ratios of sides and sines of the opposite angles for non-right triangles.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.
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## Solving Multivariable Linear Systems - Overview

by CK-12 //basic
Overview
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• Video

## Solving Multivariable Linear Systems - Example 1

by CK-12 //basic
Determine whether the ordered triple is a solution of the system of equations
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## Solving Multivariable Linear Systems - Example 2

by CK-12 //basic
Solve a system using back substitution
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## Solving Multivariable Linear Systems - Example 3

by CK-12 //basic
Solve a system using the elimination method
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## Solving Multivariable Linear Systems - Example 4

by CK-12 //basic
Solve a system with fewer equations than variables
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## Solving Multivariable Linear Systems - Example 5

by CK-12 //basic
Word Problems - Vertical Motion
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## Solving Multivariable Linear Systems - Example 6

by CK-12 //basic
Word Problems - Investment Analysis
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