What is the inverse matrix that can be used to solve this system of equations?

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How many different triangles can be constructed with the angle measurements of 134° 10° and 36° ?

Refer to interactive solution 17.45 to review a method by which this problem can be solved. the fundamental frequencies of two air columns are the same. column a is open at both ends, while column b is open at only one end. the length of column a is 0.504 m. what is the length of column b?