Topics/Questions discussed in this video: 00:00:47 NCERT Solutions Exercise 4.2 Question 10 part (i) [latex] {\begin{vmatrix} {x + 4}&{2x}&{2x}\\ {2x}&{x + 4}&{2x}\\ {2x}&{2x}&{x + 4} \end{vmatrix} = (5x + 4){{(4 - x)}^2}} [/latex]00:05:57 NCERT Solutions Exercise 4.2...

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