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

If A+B=135^(@) then (1-tan A)(1-tan B)=

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

If A+B=45^(@) , show that (1+tanA)(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 the value of (1+tan A)(1+tan B) is

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 prove that (i) (1+ tan A) (1+ tan B) =2 (ii) (cot A-1) (cot B-1)=2

if A+B=45^@ find the value of (1+tan A)(1+ tan B)

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=135^(@) then (tan A.tan B)/((1+tan A)*(1+tan B))=