If `tanA=5/6a n dtanB=1/(11),\ p rov e\ t h a t\ A+B=pi/4`

If tanA=5/6 and tanB=1/(11),\ p rov e\ t h a t\ A+B=pi/4

If tanA=5/6 and tanB=1/(11) , Prove that A+B=pi/.4

If tanA=5/6,tanB=1/11 prove that A+B=pi/4

If a^2+b^2+c^2-a b-b c-c a=0,\ p rov e\ t h a t\ a=b=c

If t a nalpha=x/(x+1)\ a n dtanbeta=1/(2x+1),\ t h e n\ alpha+beta is equal to pi/2 b. pi/3 c. pi/6 d. pi/4

If x=sin^(-1)((2t)/(1+t^2))a n d \ y=tan^(-1)((2t)/(1-t^2)),t > 1. P rov e \ t h a t(dy)/(dx)=-1

If tanA=3/4,cosB=9/(41), w h e r e pi

If x+y=pi/4a n dtanx+tany=1,t h e n(n in Z)

If x y^2=1,p rov et h a t2(dy)/(dx)+y^3=0

If y=tanx+secx ,p rov e \ t h a t \ (d^2y)/(dx^2)=(cosx)/((1-sinx)^2)