In any ` A B C ,` prove that: `Delta=(a^2-b^2)/2dot(sinAsinB)/(sin(A-B))`

In any DeltaABC , prove that Delta=(a^(2)-b^(2))/2(sinAsinB)/(sin(A-B)) .

In any ABC, prove that: Delta=(a^(2)-b^(2))/(2)(sin A sin B)/(sin(A-B))

In a Delta ABC, ((a^(2)-b^(2))sinAsinB)/(2sin(A-B))=

In any triangle A B C , prove that: (a^2sin(B-C))/(sinB+ sin C)+(b^2sin(C-A))/(sinC+ sin A)+(c^2sin(A-B))/(sinA+ sin B)=0

In any triangle A B C , prove that: (a^2sin(B-C))/(sinB+sin C)+(b^2sin(C-A))/(sinC+sin A)+(c^2sin(A-B))/(sinA+sin B)=0

In any Delta ABC, prove that :(b^(2)-c^(2))/(a^(2))=(sin(B-C))/(sin(B+C))

In any triangle A B C , prove that following: (a^2-c^2)/(b^2)=("sin"(A-C))/("sin"(A+C))

In any triangle ABC, prove that : (b^2-c^2)/(a^2)= sin (B -C)/sin(B+C) .

In any triangle A B C , prove that: acos((B-C)/2)=(b+c)sin(A/2)

In any Delta ABC, prove that :(a^(2)sin(B-C))/(sin B+sin C)+(b^(2)sin(C-A))/(sin C+sin A)+(c^(2)sin(A-B))/(sin A+sin B)=0