dy/dx+tanx tany=cosx secy

dy/dx+tanx tany=cosx secy
1. 3 answers
2. asked by Karthi
3. 4,560 views
Show that tanx = sinx / cosxcan be written as tan(x+y) = (tanx + tany) / (1 - tanxtany)
1. 1 answer
2. asked by -
3. 633 views
Show that tanx= (sinx/ cosx)can be written as: tan(x-y) = (tanx - tany) / (1+ tanxtany)
1. 1 answer
2. asked by -
3. 724 views
1.csc^2x-1/csc^2x=cos^2x2.1/1-cosx+1/1+cosx=2csc^2x 3.sinxcosy+cosxsiny/cosxcosy-sinxsiny=tanx+tany/1-tanxtany
1. 0 answers
2. asked by Blake
3. 522 views
Ok, i've tried this question, and it brings me to no answers. Please help!Prove the following: secY(1+tanY)=6cosecY my workings:
1. 1 answer
2. asked by help!
3. 511 views
Simplify #3:[cosx-sin(90-x)sinx]/[cosx-cos(180-x)tanx] = [cosx-(sin90cosx-cos90sinx)sinx]/[cosx-(cos180cosx+sinx180sinx)tanx] =
1. 1 answer
2. asked by Anonymous
3. 1,072 views
Trigonometric IdentitiesProve: (tanx + secx -1)/(tanx - secx + 1)= tanx + secx My work so far: (sinx/cosx + 1/cosx +
1. 0 answers
2. asked by Dave
3. 1,447 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. 897 views
prove that(tanx + tany) / (cotx + coty) = (tanx)(tany)
1. 1 answer
2. asked by urgent
3. 360 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. 613 views