" If "A+B=pi/2" then "tan B+2tan(A-B)=

If A+B=pi//2 then tan B+ 2 tan (A-B)=

(i) If none of A, B is pi/2 and A+B= pi/2 , then tan A tan B =1 .

(i) If none of A, B is pi/2 and A+B= pi/2 , then tan A tan B =1 .

If A+ B+C= pi//2 , " then " tan 2A + tan 2B+ tan 2C=

If A+B+C=pi , then tan((A)/(2))tan((B)/(2))+tan((B)/(2))tan((C)/(2))+tan((C)/(2))tan((A)/(2)) is equal to a) (pi)/(6) b)3 c)2 d)1

If A+B+C=(pi)/(2) then tan2A+tan2B+tan2C=

If A+B=(pi)/(2)rArr Tan A Tan B=1 , rArr Tan(A-B)=(tan A-tan B)/(1+tan A tan B)=(tan A-tan B)/(2) , rArr tan A=tan B+2tan(A-B) , x= Tan""(5 pi)/(28)+2Tan""(pi)/(7) Then x

if A-B=(pi)/(4) and A+B=(pi)/(3) then (tan^(2)A-tan^(2)B)/(1-tan^(2)A tan^(2)B)