Home
Class 11
MATHS
Prove that : (c-b)^2cos^2(A/2)+(c+b)^2si...

Prove that : `(c-b)^2cos^2(A/2)+(c+b)^2sin ^2(A/2)=a^2`

Promotional Banner

Similar Questions

Explore conceptually related problems

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

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

In A B C , prove that (a-b)^2cos^2C/2+(a+b)^2sin^2C/2=c^2dot

In A B C , prove that (a-b)^2cos^2C/2+(a+b)^2sin^2C/2=c^2dot

In A B C , prove that (a-b^2cos^2C/2+(a+b)^2sin^2C/2=c^2dot

In A B C , prove that (a-b^2cos^2C/2+(a+b)^2sin^2C/2=c^2dot

In any triangle prove that a^2 =(b+c)^2 sin^2 (A/2) +(b-c)^2 cos^2 (A/2)

In DeltaABC" prove that "(b-c)^(2)cos^(2).(A)/(2)+(b+c)^(2)sin^(2).(A)/(2)=a^(2)

In DeltaABC prove that (b-c)^(2)cos^(2).(A)/(2)+(b+c)^(2)sin^(2).(A)/(2)=a^(2)

For DeltaABC prove that, (a-b)^(2)cos^(2)""(C)/(2)+(a+b)^(2)sin^(2)""(C)/(2)=c^(2)