(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

I solved it by calculating the eigen values by ##| A- \lambda |= 0 ##.

This gave me ## \lambda _1 = 6.42, \lambda _2 = 0.387, \lambda_3 = -0.806##.

So, the required answer is 42.02 , option (b).

Is this correct?

The matrix is symmetric. Is there any other easier wat to find the answer?

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# Homework Help: Calculating Eigenvalues help

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