" 13.If "A+B=45^(@)" ,Prove that "(1+TanA)(1+Tan B)=2

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

If A+B=45^(@) then prove that (1+tan A)(1+tan B)=2. On the basis of the result obtained prove that tan22.5^(0)=sqrt(2)-1

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

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

If A+B=pi/4 ,prove that (1+tan A)(1+tan B)=2

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

If A+B=45^(@)," show that "(1+tan A) (1+tan B)=2 and hence deduce the value of tan"" 22""1^(@)/2 .

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

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