1.

Let ABC be an acute angled triangle with orthocenter H. D, E, and F are the feet of perpendicular from A, B, and C, respectively, on opposite sides. Also, let R be the circumradius respectively, on opposite sides. Also, let R be the circumradius of DeltaABC. Given AH.CH.BH=3 and (AH)^(2)+(BH)^(2)+(CH)^(2)=7. then answer the following : Value of R is

Answer»

1
`(3)/(2)`
`(5)/(2)`
None

Answer :B


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