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

If A + B = 45^@ , show that (1+tanA) (1+tanB) =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=45^(@),"show that"(1+tanA)(1+tanB)=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 , "hence find the value of " tan (22 1/2)^(@)

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^(@) , then (1+ tan A)(1+ tan B) =__________

If A+B=45^(@) , then (1+ tan A)(1+ tan B) =__________

If A +B = 45 ^(@), show that tan A + tan B + tan A tan B =1. Hence or otherwise, express tan 22 ^(@) 30' in surd form.

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