prove that (tanx + tany)

prove that(tanx + tany) / (cotx + coty) = (tanx)(tany)
1. 1 answer
2. asked by urgent
3. 358 views
Show that tanx= (sinx/ cosx)can be written as: tan(x-y) = (tanx - tany) / (1+ tanxtany)
1. 1 answer
2. asked by -
3. 722 views
Show that tanx = sinx / cosxcan be written as tan(x+y) = (tanx + tany) / (1 - tanxtany)
1. 1 answer
2. asked by -
3. 630 views
If tany(1+tanx)=1-tanx, show that dy/dx=-1
1. 0 answers
2. asked by shoaib
3. 917 views
Problem:tan[arccsc(-5/3) + arctan(1/4)] My work: let arccsc(-5/3)=X and let arctan(1/4)=Y where -pi/2<=X<=pi/2, X cannot be 0
1. 1 answer
2. asked by Dennis
3. 536 views
tanx=1/1,tany=1/3 then cos2x=sin2y
1. 1 answer
2. asked by gopi
3. 447 views
If tanx = 2/3 tany = 1/2then tan(x-y) = ?? a.7/4 b.7/6 c.1/8 d.8/6 which answer is correct ??
1. 4 answers
2. asked by Don
3. 376 views
dy/dx+tanx tany=cosx secy
1. 3 answers
2. asked by Karthi
3. 4,559 views
if 2sinx=1,π÷2<x<π and √2cosy=1,3π÷2<y<2π, find the value of tanx + tany÷ cosx - cosy
1. 2 answers
2. asked by Anonymous
3. 896 views
Verify the following identity.1) sin(x+y) __________ = tanx+tany cosxcosy 2) Write cos3x in terms of cosx I cannot figure out
1. 0 answers
2. asked by ALISON
3. 611 views