If `A+B=pi/3a n dcosA+cos B=1,` then find the value of `cos(A-B)/2dot`

If A+B=(pi)/(3) and cos A+cos B=1, then find the value of (cos(A-B))/(2)

if A+B=pi/3 and cos A+cos B=1, then

If A+B=(pi)/(3) and cos A+cos B=1 then

If cosA=4/5 and cosB=12/13 , then find the values of cos(A+B) and sin(A-B) , where A , B ((3pi)/(2) to 2pi ) .

If sin A+sin B=alpha a n d cos A+cos B=beta, then write the value of tan((A+B)/2)dot

If sin A+sin B=alpha\ a n d\ cos A+cos B=beta, then write the value of tan((A+B)/2)dot

If cos A=m cos B , then write the value of cot((A+B)/2)cot((A-B)/2dot)

If sin A+sin B=p,cos A+cos B=q Find the value of cos2A+cos2B

If A+B=pi/3a n d\ cos A+cos B=1,\ t h e n- a. cos(A-B)=1//3 b. \ |cos A-cos B|\ =sqrt(2/3) c. cos(A-B)=\ -1/3 d. \ |cos A-cos B|=1/(2sqrt(3))

If A+B=pi/3a n d\ cos A+cos B=1,\ t h e n- a. cos(A-B)=1//3 b. \ |cos A-cos B|\ =sqrt(2/3) c. cos(A-B)=\ -1/3 d. \ |cos A-cos B|=1/(2sqrt(3))