The value of `(b-c)/r_1+ (c-a)/r_2+ (a-b)/r_3` is equal to

Value of the expression (b-c)/(r_1)+(c-a)/(r_2)+(a-b)/(r_3) is equal to 1 (b) 2 (c) 3 (d) 0

value of the expression (b-c)/(r_(1))+(c-a)/r_(2)+(a-b)/r_(3) is equal to

value of the expression (b-c)/(r_(1))+(c-a)/r_(2)+(a-b)/r_(3) is equal to

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

If a !=p, b !=q, c!=r and |(p,b,c),(a,q,c),(a,b,r)| = 0 then the value of (p)/(p-a)+(q)/(q-b)+(r)/(r-c) is equal to a)-1 b)1 c)-2 d)2

In triangle ABC,(cos A)/(a)=(cos B)/(b)=(cos C)/(c) The valuecos of (r_(1)+r_(2)+r_(3))/(r) is equal to

In any triangle,the minimum value of r_(1)r_(2)r_(3)/r^(3) is equal to 1(b)9(c)27(d) none of these

In any triangle, the minimum value of r_1r_2r_3//r^3 is equal to (a) 1 (b) 9 (c) 27 (d) none of these

In any triangle, the minimum value of r_1r_2r_3//r^3 is equal to 1 (b) 9 (c) 27 (d) none of these

In a triangle A B C ,\ (r_1-r)(r_2-r)(r_3-r) is equal to 4R r^2 (b) (4a b cdot)/((a+b+c)^2) 16 R^3(cos A+cos B+cos C-1) r^3cose c A/2cose c B/2cose c C/2