Use a Graphing Calculator and the Method of Matrix Inverses $$\begin{array} { l } \pi x + e y + \sqrt { 2 } z = 2 \\e x + \pi y + \sqrt { 2 } z = 4 \\\sqrt { 3 } x + e y + \pi z = 6\end{array}$$

question 77

Multiple Choice

Use a graphing calculator and the method of matrix inverses to Give five decimal places, if necessary.
- $$\begin{array} { l } \pi x + e y + \sqrt { 2 } z = 2 \\e x + \pi y + \sqrt { 2 } z = 4 \\\sqrt { 3 } x + e y + \pi z = 6\end{array}$$

• A) \(\{ ( 1.41421,2.82843,3.46410 ) \}\)
• B) \(\{ ( - 4.12755,4.84931 , - 0.01039 ) \}\)
• C) \(\{ ( - 2.71828,3.14159,1.41421 ) \}\)
• D) \(\{ ( - 2.01284,2.71182,0.67317 ) \}\)

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Definitions:

Expand

In mathematics, expanding refers to the process of simplifying an expression or equation by multiplying out brackets and combining like terms.

Properties

Characteristics or attributes that help in identifying or describing mathematical figures, expressions or equations.

Logarithms

In mathematics, the exponent or power to which a base must be raised to yield a specific number.

Condense

In mathematics, to condense an expression means to simplify it into a more compact form, often by using properties of logarithms or exponents.