In/_ABC," if "r_(1)=2r_(2)=3r_(1)" and "D" is the midpoint of "BC," then "cos/_ADC=

In Delta ABC if r_(1)=2r_(2)=3r_(3) and D is the mid point of BC then cos/_ADC=

In DeltaABC if r_(1)=2r_(1)=3r_(3) and D is the mid point of BC then cos angle ADC=

In Delta ABC if r_1=2r_2=3r_3 and D is the mid point of BC then cos/_ADC=

In Delta ABC if r_1=2r_2=3r_3 and D is the mid point of BC then Cos/_ADC is (a) 7/25 (b) -7/25 (c) 24/25 (d) -24/25

In a !ABC , if r_(1) =2r_(2) =3r_(3) , then a:b:c =

In a triangle ABC , if r_(1) =2r_(2) =3r_(3) , then a:b:c =

In a !ABC if r_(1) = 8, r_(2) = 12 and r_(3) = 24, then a =