Home
Class 11
MATHS
In DeltaABC, prove that: acosA+bcosB=(c)...

In `DeltaABC`, prove that: `acosA+bcosB=(c)cos(A-B)`

Promotional Banner

Similar Questions

Explore conceptually related problems

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

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

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

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

In any DeltaABC , prove that : a cos A + b cos B + c cos C = 2a sin B sin C

In any DeltaABC , prove that acosA+bcosB+c cosC=2asinBsinC .

In any DeltaA B C prove that acosA+bcosB+c cosC=(8Delta^2)/(a b c)dot

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