sloppy way of writing the trig expressions
( when you write tan2, you are asking for the tan(2 radians. What you meant was something like tan^2 Ø
It has to be the sine of something, the cosine of something, or the tangent of something.
anyway .....
(1 - cos^2 Ø)/cos^2 Ø
= sin^2 Ø/cos^2 Ø
= (sinØ/cosØ)^2
= (tanØ)^2
or
tan^2 Ø ............. all by using basic definitions and identities.
Why does
1 - COS2(Squared)
_________________
COS2
= tan2
2 answers
Sorry. Don't think I have those keys on this standard keyboard? I could be wrong.
Let me ask. From step 2 to 3 ...
we go from sin / cos squared separately to (sin/cos)2 or times 2 for each? That means the same thing in this case?
We can't just go from step 2 to the last step?
Sin2/Cos2 is tan2?
I'm trying to get this man.
Let me ask. From step 2 to 3 ...
we go from sin / cos squared separately to (sin/cos)2 or times 2 for each? That means the same thing in this case?
We can't just go from step 2 to the last step?
Sin2/Cos2 is tan2?
I'm trying to get this man.
2 answers