Home
Class 12
MATHS
In any DeltaABC, prove that (1+cos(A-B...

In any `DeltaABC`, prove that
`(1+cos(A-B)cosC)/(1+cos(A-C)cosB)=(a^(2)+b^(2))/(a^(2)+c^(2))`

Promotional Banner

Similar Questions

Explore conceptually related problems

In any triangle A B C , prove that: (1+cos(A-B)cos C)/(1+cos(A-C)cos B)=(a^2+b^2)/(a^2+c^2)

In any triangle A B C , prove that: (1+cos(A-B)cos C)/(1+cos(A-C)cos B)=(a^2+b^2)/(a^2+c^2)

In DeltaABC , prove that: (1+cosA.cos(B-C))/(1+cosC.cos(A-B))=(b^(2)+c^(2))/(a^(2)+b^(2))

In DeltaABC , prove that: b(cosA-cosC)=2(c-a)cos^(2)B/2

In any DeltaABC , prove that a(cosC-cosB)=2(b-c)cos^(2)""1/2A

In DeltaABC , prove that: (c-bcosA)/(b-c (cosA))=(cosB)/(cosC)

In DeltaABC , prove that: a(cosB+cosC)=2(b+c)sin^(2)A/2 .

In any Delta A B C , prove that: a(b\ cos C-c cosB)=b^2-c^2

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

In DeltaABC , prove that: (b+c)cos(B+C)/(2)=acos(B-C)/(2)