" 3."a^(2)(cos^(2)B-cos^(2)C)+b^(2)(cos^...

" 3."a^(2)(cos^(2)B-cos^(2)C)+b^(2)(cos^(2)C-cos^(2)A)+c^(2)(cos^(2)A-cos^(2)B)=0

" 3."a^(2)(cos^(2)B-cos^(2)C)+b^(2)(cos^(2)C-cos^(2)A)+c^(2)(cos^(2)A-...
Text Solution
|
In /ABC prove that (b^(2)-c^(2))/(cos B+cos C)+(c^(2)-a^(2))/(cos C+co...
Text Solution
|
If any triangle A B C , that: (b^2-c^2)/(cosB+cosC)+(c^2-a^2)/(cosC+co...
Text Solution
|
a(cosC-cosB)=2(b-c)cos^2A/2
Text Solution
|
a^2(cos^2B-cos^2C)+b^2(cos^2C-cos^2A)+c^2(cos^2A-cos^2B)=0 .
Text Solution
|
(b^2-c^2)/acosA+(c^2-a^2)/bcosB+(a^2-b^2)/c cos C=0
Text Solution
|
In any triangle A B C , prove that following: \ (cos^2B-cos^2C)/(b+c)+...
Text Solution
|
A+B=C rArr cos^(2)A+cos^(2)B+cos^(2)C-2cos A cos B cos C=
Text Solution
|
In any DeltaABC, prove that : (b^2 - c^2)/(cos B + cos C) + (c^2 - a^2...
Text Solution
|