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Grade 12Algebra

Q.12............................see image..................................

Question image for Q.12............................see image........

Harsh vijay

7 Years agoGrade 12

1 Answer

Akshat Arya

7 Years ago

whenever compicated matrix including three summation comes muliplication of matrix is the answer to it

$\begin{vmatrix} 1 11 & \\ \alpha \beta \gamma & & \\ \alpha ^{2}\beta ^{2}\gamma ^{2}& & \end{vmatrix}$ $\begin{vmatrix} 1\alpha \alpha ^{^{2}} & & \\ 1\beta \beta ^{2}& & \\ 1\gamma \gamma ^{2} & & \end{vmatrix}$

$\begin{vmatrix} 1 11 & \\ \alpha \beta \gamma & & \\ \alpha ^{2}\beta ^{2}\gamma ^{2}& & \end{vmatrix}$ $\begin{vmatrix} 1 11 & \\ \alpha \beta \gamma & & \\ \alpha ^{2}\beta ^{2}\gamma ^{2}& & \end{vmatrix}$

$\begin{vmatrix} 1 11 & \\ \alpha \beta \gamma & & \\ \alpha ^{2}\beta ^{2}\gamma ^{2}& & } \end{vmatrix}$ ^{whole square}

open the matrix

hence proved

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