Home
Class 11
MATHS
(a+b)Cos((A +B)/2)= Kcos((A-B)/2) , K=?...

`(a+b)Cos((A +B)/2)= Kcos((A-B)/2) , K=?`

Promotional Banner

Similar Questions

Explore conceptually related problems

Prove that cos (A + B) cos (A - B) = cos^(2) A - sin^(2) B = cos^(2) B- sin^(2) A

Prove that cos (A + B) cos (A - B) = cos^(2) B - sin^(2) A

Prove that: (cos A+cos B)/(cos B-cos A)=cot((A+B)/2)cot((A-B)/2)

In Delta ABC sin((A)/(2))*cos((B)/(2))=(a+c-b)/(2c)k then k=

let a=cos A+cos b-cos(A+B) and b=4sin((A)/(2))sin((B)/(2))cos((A+B)/(2)) Then a-b is

(cos A+cos B)/(cos B-cos A)=cot((A+B)/(2))cot((A-B)/(2))

Prove that: (cos A+cos B)/(cos B-cos A)=cot((A+B)/(2))cot((A-B)/(2))

let a=cosA+cosB-cos(A+B) and b=4sin(A/2)sin(B/2)cos((A+B)/2) Then a-b is

(1+cos 56^(@)+cos58^(@)-cos66^(@))/(cos28^(@)cos29^(@)sin33^(@))=kcos(A/2)cos(B/2)sin(c/2) then k=?