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highschoolmom2010
 one year ago
trigonometric functions
highschoolmom2010
 one year ago
trigonometric functions

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agent0smith
 one year ago
Best ResponseYou've already chosen the best response.1Well, you can start by testing a couple of values, to disprove it immediately try A=30 and B=59 Tan30 + tan59 = tan89 ?

terenzreignz
 one year ago
Best ResponseYou've already chosen the best response.1I for one, do not recall the tangent identity to be quite as simple as tan(A) + tan(B) = tan(A + B)...

agent0smith
 one year ago
Best ResponseYou've already chosen the best response.1It's not @terenzreignz, but the question states for A+B< 90 which makes it not able to be an identity. But it's easy to disprove.

terenzreignz
 one year ago
Best ResponseYou've already chosen the best response.1Why not tan(45) + tan(30) = tan(75) :)

pgpilot326
 one year ago
Best ResponseYou've already chosen the best response.0tan 45 = 1. tan 22.5 <> .5

agent0smith
 one year ago
Best ResponseYou've already chosen the best response.1^that also disproves it, @highschoolmom2010

katherine.ok
 one year ago
Best ResponseYou've already chosen the best response.0basically tana+tanb= (sinacosb+sinbcosa)/cosacosb= sin(a+b)/cosacosb

terenzreignz
 one year ago
Best ResponseYou've already chosen the best response.1At least we have exact values for these stuff :3 \[\Large \tan(45^o) = 1\\\Large \tan(30^o)=\frac1{\sqrt{3}}\]

agent0smith
 one year ago
Best ResponseYou've already chosen the best response.1My reasoning for picking a A+B close to 90, was due to tan90 being undefined, so it's highly unlikely two smaller angles will give anything close to the tangent of an angle near 90

katherine.ok
 one year ago
Best ResponseYou've already chosen the best response.0=(sinacosb+cosasinb)/cosacosb=/= sinasinb/cosacosb

katherine.ok
 one year ago
Best ResponseYou've already chosen the best response.0Now i need to somehow prove sinacosb+sinbcosa=/=sinasinb...

agent0smith
 one year ago
Best ResponseYou've already chosen the best response.1@katherine.ok based on her other questions, I don't think she's at the level of trigonometry where they're using proofs. I think it's more an analytical question.

pgpilot326
 one year ago
Best ResponseYou've already chosen the best response.0tan 60 + tan (30) <> tan 30

katherine.ok
 one year ago
Best ResponseYou've already chosen the best response.0I think as simple as this sound...

katherine.ok
 one year ago
Best ResponseYou've already chosen the best response.0by using the tangent graph, adding a random point where x is (0,90),you will not get tan a+ tan b because it is not linear graph.

highschoolmom2010
 one year ago
Best ResponseYou've already chosen the best response.0im lost on all of this tbh....
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