Show that `rr_(1)r_(2)r_(3)=Delta^(2)`

In any Delta ABC, prove that r.r_(1).r_(2).r_(3)=Delta^(2)

In a DeltaABC, show that r_(1)* r_(2)* r_(3)*r=Delta^(2).

In a DeltaABC, show that r_(1)* r_(2)* r_(3)*r=Delta^(2).

In a DeltaABC, show that r_(1)* r_(2)* r_(3)*r=Delta^(2).

In a DeltaABC ,with usual notations, observe the two statements given below: (I) rr_(1)r_(2)r_(3)=Delta^(2) (II) r_(1)r_(2)+r_(2)r_(3)+r_(3)r_(1)=s^(2) Which one of the following is correct?

In a DeltaABC ,with usual notations, observe the two statements given below: (I) rr_(1)r_(2)r_(3)=Delta^(2) (II) r_(1)r_(2)+r_(2)r_(3)+r_(3)r_(1)=s^(2) Which one of the following is correct?

Show that r r_1 r_2 r_3 = Delta^2

In /_ABC, with usual notation,observe the two statements given below: Statement: I: rr_(1)r_(2)r_(3)=Delta^(2) Statement: Il: r_(1)r_(2)+r_(2)r_(3)+r_(3)r_(1)=s^(2)

Show that rr_(1)cot.(A)/(2)=Delta .

In Delta ABC , show that: (r_(1)+r_(2)) sec^(2) ""(C)/(2) = (r_(2) +r_(3)) sec^(2) ""(A)/(2) =(r_(3)+r_(1)) sec^(2)""(B)/(2)