tanx=1/1,tany=1/3 then cos2x=sin2y

tanx=1/1,tany=1/3 then cos2x=sin2y
1. 1 answer
2. asked by gopi
3. 472 views
prove that(tanx + tany) / (cotx + coty) = (tanx)(tany)
1. 1 answer
2. asked by urgent
3. 387 views
Show that tanx= (sinx/ cosx)can be written as: tan(x-y) = (tanx - tany) / (1+ tanxtany)
1. 1 answer
2. asked by -
3. 773 views
Show that tanx = sinx / cosxcan be written as tan(x+y) = (tanx + tany) / (1 - tanxtany)
1. 1 answer
2. asked by -
3. 667 views
If tany(1+tanx)=1-tanx, show that dy/dx=-1
1. 0 answers
2. asked by shoaib
3. 939 views
A=cos2x+isin2x ,B=cos2y+sin2y hence prove that A-B/A+B=itan(x+y).
1. 0 answers
2. asked by Saloni
3. 640 views
suppose sin(x)=4/5 and cos(y)=-12/13, and x and y are in the second quadrant. determine the value of each expression: sin(x+y),
1. 1 answer
2. asked by jj re
3. 1,321 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. 572 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. 399 views
dy/dx+tanx tany=cosx secy
1. 3 answers
2. asked by Karthi
3. 4,579 views