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সমীকরণ জোট: ( x+y+z=6, x-2 y+2 z=3,2 x+y-z=1 ) ( B= left[ begin array ccc 1+x^ 2 -y^ 2 & 2 x y & -2 y 2 x y & 1-x^ 2 +y^ 2 & 2 x 2 y & -2 x & 1-x^ 2 -y^ 2 end array right] ) | Suva Ai