यदि `tanA=(1)/(2)` और `tanB=(1)/(3)`, तो सिद्ध कीजिए कि `A+B=(pi)/(4)`.

If tanA=(1)/(2),tanB=(1)/(3) , then cos2A=?

If tanA=1/2 , tanB=1/3 , then cos2A=

If tanA=(1)/(2) and tanB=(1)/(3) , then tan(2A+B) is equal to

If tanA=(1)/(2) and tanB=(1)/(3) , then tan(2A+B) is equal to

If tanA=(1)/(7) and tanB=(1)/(3) then show that cos(2A)=sin(4B) .

यदि triangleABC में (If इन triangleABC), a = (1)/(sqrt(6)-sqrt(2)), b = (1)/(sqrt(6)+sqrt(2)), C = 60^(@) तो सिद्ध कीजिए कि (Prove that) c = (sqrt(4))/(2) .

If tanA=m/(m-1)\ a n d tanB=1/(2m-1), then prove that A-B=\ pi/4

If A and B are acute angles such that tanA=(1)/(3) , tanB=(1)/(2) and tan(A+B)=(tanA+tanB)/(1-tanAtanB) , Then find the value of A+B .

if TanA=1/2, tanB=1/3 then cos2A-sin2B=