[" If "A+B=(pi)/(4)," then "],[(1+tan A)(1+tan B)=?]

AB = (pi) / (4), then (1 + tan A) (1-tan B) =

If A+B=(pi)/(4), then (tan A+1)(tan B+1) equals

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

IF A + B = (pi)/(4) then ( tan A +1) ( tan B+1) equals

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

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

If A-B=(3pi)/(4) , that show that (1- tan A) (1+tan B)=2

Assertion (A) : If Tan((pi)/(4)+ theta)+Tan ((pi)/(4)- theta)=k then Tan^(3)((pi)/(4)+ theta)+Tan^(3) ((pi)/(4)- theta)=k^(3)-3k Reason (R) : If A+B=(pi)/(2) then Tan A tan B=1