+0  
 
+4
795
5
avatar+2592 

So in my Pre-Calc class, we just learned some identies of sin,cos, and tan.

Just wondering if anybody else, not CPhill or Alan, knows this stuff

 

\((Tan\alpha +Tan\beta)/(1-Tan\alpha*Tan\beta) = \)

\(Cos\alpha*Cos\beta -Sin\alpha*Sin\beta = ? \)

 Jan 28, 2016

Best Answer 

 #3
avatar+2592 
+5

I wrote that because i knew you two would know the anwser

 

cheeky

 Jan 28, 2016
 #1
avatar+33616 
+5

Just noticed you wrote NOT CPhil or Alan!  So I've deleted my reply.

 Jan 28, 2016
edited by Alan  Jan 28, 2016
edited by Alan  Jan 28, 2016
 #2
avatar+128475 
+5

HAHAHA!!!!........what do you have against us???

 

First one  ..... Tan (A + B)

 

Second one.........Cos (A + B)

 

 

 

cool cool cool

 Jan 28, 2016
 #3
avatar+2592 
+5
Best Answer

I wrote that because i knew you two would know the anwser

 

cheeky

SpawnofAngel Jan 28, 2016
 #4
avatar+8581 
+5

Tha'ts funny. And yes, I know how to do that :D

 Jan 28, 2016
 #5
avatar
0

so funny XD

 Jan 28, 2016

4 Online Users

avatar
avatar
avatar