Trigonometry Question
What's the question?
\[\tan \Theta+\cot \theta/\sec \Theta+\csc \theta \]
Prove identity to be equal to 1/sin(theta)+cos(theta)
Ask yourself what tangent is. Then perform the same identification process for cotangent, secant, and cosecant. The answer will make itself clear.
the two sides are not equal.
\[\tan \theta=\sin \theta/\cos \theta, \cot =1/\tan \theta= \cos \theta /\sin \theta\]
Let's call theda x. It will be easier for to type.
tanx = sinx / cosx Right?
\[\sec \theta=1/\cos \theta, \csc =1/\sin \theta \]
Exactly. What about cot?
okay let it be x
let theta be x sinx/cosx+cosx/sinx/1/cos+1/sinx cosines and sines at the numerator are cancelled out
perform a cross multiplication 1/sinx+cosx/sinxcosx
You skipped some steps, but I think you got the idea.
@lordsampigans How can i get rid of sinxcosx then?
Let me put it this way.... Gimme a second.
So let's look at this as a giant algebra problem with some crazy fractions.
Let's start by asking you a very fundamental question. Sin^2(x) + Cos^2(x) = ?
1
Absolutely. You are now prepared to solve this guy.
So looking at the problem. We have tan(x) + cot(x) all over sec(x) + csc(x)
i got it
Rewrite this. This is confusing to look at. Let's write it as tan(x) + cot(x) / (sec(x) +csc(x) Literally write your division symbol like you did in grade school.
now thank you
you gave me the hint to solve the problem
Lol. Glad I could help.
Thank you man :)
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