Evaluate the Determinant $\left| \begin{array} { r r r } 1 & - 2 & 5 \\- 2 & 1 & 1 \\- 5 & - 2 & 1\end{array} \right|$

question 131

Short Answer

Evaluate the determinant. $\left| \begin{array} { r r r } 1 & - 2 & 5 \\- 2 & 1 & 1 \\- 5 & - 2 & 1\end{array} \right|$

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Definitions:

Mountain Front

The area where the steep slopes of a mountain range meet the comparatively flat terrain, often characterized by significant changes in elevation and geologic features.

Youngest Unit

The most recent geological layer, structure, or formation in a sequence of stratified rocks.

Pebble-sized Particles

Small, rounded stones or pieces of rock, typically sized between 4 and 64 millimeters in diameter.

Oldest Unit

The earliest formed part of a geological sequence, which can provide valuable information about the Earth's history.