If `DeltaABC,` if `(c+a)/12=(a+b)/14=(b+c)/18`, then find vaue of `(7r_(1)-r_(2))/(11r)` is

In DeltaABC,(b-c)/r_1+(c-a)/r_2+(a-b)/r_3=

In DeltaABC , if r = 1, R = 3, and s = 5 , then the value of a^(2) + b^(2) + c^(2) is _____

In DeltaABC , if r = 1, R = 3, and s = 5 , then the value of a^(2) + b^(2) + c^(2) is _____

In DeltaABC , if r = 1, R = 3, and s = 5 , then the value of a^(2) + b^(2) + c^(2) is _____

In DeltaABC , if r = 1, R = 3, and s = 5 , then the value of a^(2) + b^(2) + c^(2) is _____

In DeltaABC,r_1/((s-b)(s-c))=

In a triangle ABC if sides a = 13, b =14 and c = 15, then reciprocals of r_(1),r_(2),r_(3) are in the ratio

In a !ABC if a = 13, b =14 and c = 15, then reciprocals of r_(1),r_(2),r_(3) are in the ratio

In a DeltaABC if r_(1):r_(2):r_(3)=2:4:6, then a:b:c =