Practicing Success
Practicing Success
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If the matrix $\begin{bmatrix}a& -2 & 5b\\2 & 0 & -15\\15 & 3c & 0 \end{bmatrix}$ is skew-symmetric, then the value of $a^2+b^2+c^2 $ is : |
15 34 25 16 |
34 |
