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If the determinant x+a    p+u   l+fy+b  q+v    m+gz+c   r+w   n+hsplits into exactly k determinants of order 3, each element of which contains only one term, then the value of k is

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c
8
d
10

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detailed solution

Correct option is C

since,x+a    p+u   l+fy+b  q+v    m+gz+c   r+w   n+h=   x        p          ly+b  q+v    m+gz+c   r+w   n+h +  a        u           fy+b  q+v    m+gz+c   r+w   n+hsplitting first row=   x        p          l   y       q         mz+c   r+w   n+h +   x        p          l   b       v         gz+c   r+w   n+h+  a        u           f  y         q        mz+c   r+w   n+h+  a        u           f  b         v          gz+c   r+w   n+h                                                                                                                                                splitting second rowSimilarly we can split these 4 determinants in 8 determinants by splitting each one in two determinants further. So, k=8


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If [ ] denotes the greatest integer less than or equal to the real number under consideration, and 1x<0,0y<1,1z<2, then the value of the determinant [x]+1[y][z][x][y]+1[z][x][y][z]+1 is


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