ul(ul(alpha))ul(g)rarr" Prove that: "|[0,a,-b],[-a,0,-c],[b,c,0]|=0

Prove that : |{:(0,a-b,a-c),(b-a,0,b-c),(c-a,c-b,0):}|=0

Prove that : |{:(0,a-b,a-c),(b-a,0,b-c),(c-a,c-b,0):}|=0

If |{:(a,b,a alpha+b),(b,c,b alpha+c),(a alpha +b,b alpha+c,0):}|=0 Prove that a,b,c are in G.P. or alpha is a root of ax^2 + 2bx + c=0

If |(a,b,aalpha+b),(b,c,balpha+c),(aalpha+b,balpha+c,0)|=0, prove that a,b,c, are in G.P. or alpha is a root of ax^(2)+ 2bx+c=0

If |(a,b,a alpha+b),(b,c, b alpha+c),(a alpha+b, b alpha+c,0)|=0 then

{:(ul("The article offers"),ul("good advice to"),ul("whomever must accept it"),ul("No error")),(" (a)"," (b)"," (c)"," (d)"):}

{:(ul("Either the operator"),ul("or the foreman are"),ul("to blame for the accident"),ul("No error")),(" (a)"," (b)"," (c)"," (d)"):}

{:(ul("She dislikes"),ul("you being most organized"),ul("than she is"),ul("No error")),(" (a)"," (b)"," (c)"," (d)"):}

{:(ul("When the party was over"),ul("he looked around for the girl"),ul("who had come with him"),ul("No error")),(" (a)"," (b)"," (c)"," (d)"):}

{:(ul("After we were driving for miles"),ul("on the winding road"),ul("I was suddenly sick"),ul("No error")),(" (a)"," (b)"," (c)"," (d)"):}