If `A+B = pi/4`, then prove that `(1+tanA ) (1+tanB)=2`.

If A+B=pi/4 , prove that: (1+tanA)(1+tanB)=2

If A+B=90^(@) then prove that 1+(tanA)/(tanB)=sec^(2)A.

If A + B = 45^@ , show that (1+tanA) (1+tanB) =2

If A-B = pi/4 , then (1+tanA)(1-tanB)=

If A-B = pi/4 , then (1+tanA)(1-tanB)=

If A+B =45^@ , then the value of 2(1+ tanA)(1+ tanB) is: यदि A+B =45^@ है, तो 2(1+ tanA)(1+ tanB) का मान होगा :

If A+B=pi/4 show that (1+tanA)(1+tanB)=2

If 3tanA tanB=1 , then prove that 2cos(A+B)=cos(A-B)

If A+B+C=kpi, k inZ Then prove that, tanA+tanB+tanC=tanA.tanB.tanC