1.

IF a,b,care inA. Pand if( b-c )^2+(c-a)x+ (c-a ) x+(a-b) =0and2(c+a) x^2 +(b+c) x=0havea commonrootthen

Answer»

`a^2 , B^2 ,c^2 ` are inA.P
`a^2,c^2 ,b^2` are in A.P
`a^2, ,c^2,b^2` are in G.P
NONEOF these

Answer :B


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