Let A=[[x+lambda,x,x] , [x,x+lambda,x] ,...

Let `A=[[x+lambda,x,x] , [x,x+lambda,x] ,[x,x,x+lambda]]` then`A^(-1)` exists if (A) `x!=0` (B) `lambda!=0` (C) `3x+1!=0`, `lambda!=0` (D) `x!=0`, `lambda!=0`

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