if `tantheta_1=kcottheta_2` then find `cos(theta_1-theta_2)/cos(theta_1+theta_2)=`

If tantheta_1=kcottheta_2 then (cos(theta_1+theta_2))/(cos(theta_1-theta_2))=

If tan theta_1= k cot theta_2 " then " (cos (theta_1- theta_2))/(cos(theta_1+theta_2))=

if tan theta_(1)=k cot theta_(2) then find (cos(theta_(1)-theta_(2)))/(cos(theta_(1)+theta_(2)))=

If Tan theta_(1)=k cot theta_(2) then (cos (theta_(1)+theta_(2)))/(cos (theta_(1)-theta_(2)))=

IF tan theta _1 = k cot theta _2 , then ( cos ( theta _1+ theta _2))/(cos ( theta _1 - theta_2)) =

If tan theta_(1).tantheta_(2)=k , then: (cos(theta_(1)-theta_(2))/(cos(theta_(1)+theta_(2)))=

If 0lt theta_2 lt theta_1 lt pi/4, cos(theta_1+theta_2)=3/5 and cos(theta_1-theta_2)=4/5 then sin2theta_1=

given that tan(theta_1 + theta_2) = (tantheta_1 + tantheta_2)/(1-tantheta_1*tantheta_2) find (theta_1+theta_2) when tantheta_1 =1/2 , tantheta_2=1/3

If 0