If `x/y = cosA/cosB`, then `(xtanA+ytanB)/(x+y)=`

If x/y=(cos A)/(cos B) then (xtannA+ytanB)/(x+y) is equal to

If a cosA=b cosB, then triangleABC is

If a cosA=b cosB, then triangleABC is

if (x)/(y)=(cosA)/(cosB) then prove that (x tan A+y tan B)/(x+y)=tan""(A+B)/(2)

if (x)/(2)=(cosA)/(cosB) then prove that (x tan A+y tan B)/(x+y)=tan""(A+B)/(2)

if (x)/(2)=(cosA)/(cosB) then prove that (x tan A+y tan B)/(x+y)=tan""(A+B)/(2)

If A+B=pi/3 , and cosA+cosB=1 , then

If x = cosecA + cosA and y = cosecA - cosA, then find the value of (2/(x+y))^2 +((x-y)/2)^2 -1 . यदि x = cosecA + cosA और y =cosecA - cosA, तो (2/(x+y))^2 +((x-y)/2)^2 -1 का मान ज्ञात करें:

If sinA+sinB=a and cosA+cosB=b,then cos(A+B)