This video explains eigenvalues and eigenvectors in a fresh, intuitive way, focusing on meaning and visualization rather than ...

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Solution: det (A) = −5, and for n×n matrix adj (A) has determinant (det A)^ (n−1). Here n = 3, so det (B) = (−5)^ (2) = 25.

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Again, the secret is how you’re wrapping all the way around the item. A diamond orientation means you’re folding over right ...