题目
求下列行列式的值:
∣ A ∣ = ∣ a 1 b 1 a 1 b 2 a 1 b 3 a 1 b 4 a 2 b 1 a 2 b 2 a 2 b 3 a 2 b 4 a 3 b 1 a 3 b 2 a 3 b 3 a 3 b 4 a 4 b 1 a 4 b 2 a 4 b 3 a 4 b 4 ∣ . \left| A \right|=\left| \begin{matrix} {
{a}_{1}}{
{b}_{1}} & {
{a}_{1}}{
{b}_{2}} & {
{a}_{1}}{
{b}_{3}} & {
{a}_{1}}{
{b}_{4}} \\ {
{a}_{2}}{
{b}_{1}} & {
{a}_{2}}{
{b}_{2}} & {
{a}_{2}}{
{b}_{3}} & {
{a}_{2}}{
{b}_{4}} \\ {
{a}_{3}}{
{b}_{1}} & {
{a}_{3}}{
{b}_{2}} & {
{a}_{3}}{
{b}_{3}} & {
{a}_{3}}{
{b}_{4}} \\ {
{a}_{4}}{
{b}_{1}} & {
{a}_{4}}{
{b}_{2}} & {
{a}_{4}}{
{b}_{3}} & {
{a}_{4}}{
{b}_{4}} \\ \end{matrix} \right|. ∣A∣=∣∣∣∣∣∣∣∣a1b1a2b1a3b1a4b1a1b2a2b2