|{:(a,-b,a-b),(b,c,b-c),(2,1,0):}|=0 the...

`|{:(a,-b,a-b),(b,c,b-c),(2,1,0):}|=0` then a,b,c are in …………..

A

G.P

B

A.P

C

H.P

D

None of these

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A

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If x,y,z in R. xgtygtz and D= |{:((x+1)^2,(y+1)^2,(z+1)^2),(x,y,z),(...
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If |{:(a,b,ax+b),(b,c,bx+c),(ax+b,bx+c,0):}|'=0 then "a,b,c are in" .....
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