sec2x-secx+tan2x just simply

Question

turingtest · Answer

$$\sec^2x-\sec x+\tan^2x$$right?

ksaimouli · Answer

ya

ksaimouli · Answer

i got sec+1 and sec-1

turingtest · Answer

I see 2tan^2x-secx+1 
off the bat...
can it be further simplified? hmm...

turingtest · Answer

how did you get two answers?
$$\sec x+1$$ and $$\sec x -1$$?

turingtest · Answer

doesn't seem to get much simpler: http://www.wolframalpha.com/input/?i=simplify+sec%5E2x-sec%28x%29%2Btan%5E2x

ksaimouli · Answer

sec2-secx+sec2x-1

turingtest · Answer

new problem?

ksaimouli · Answer

2sec2-secx-1

ksaimouli · Answer

npoe

ksaimouli · Answer

old prob

turingtest · Answer

so you typed it wrong, or is this what you are getting as an answer?

ksaimouli · Answer

the solution u asked me how i got sec+1 and sec-1

ksaimouli · Answer

tan2x can be sec2-1 all sec are there so we can sec+1 and sec-1

ksaimouli · Answer

new problem is sec3x-secx=0

turingtest · Answer

here's what I see...$$\sec^3x-\sec x=0$$$$\sec x(\sec^2x)-\sec x=0$$$$\sec x(\sec^2x-1)=0$$$$\sec x \tan^2x=0$$$${\sin^2x \over \cos^3x}=0\to \sin x=0$$$$x=\left\{ n \pi: n=0,1,2... \right\}$$make sense?

ksaimouli · Answer

no u should not use any identites in this u should same way like this x3-16x=0 just simply

turingtest · Answer

but it is 
sec^3x-secx=0
equals signs usually mean solve, not simplify...

turingtest · Answer

even so, all you want then is
$$\sec^3x-\sec x=0$$$$\sec x(\sec^2x-1)=0$$$$\sec x(\sec x-1)(\sec x+1)=0$$that's as far as you can simplify without identities...
Is that really what you are looking for? strange to have an algebra problem in trig like this o-0

ksaimouli · Answer

we are practicing forctring before we go for originall one 2sin2+3sinx+1=0 this is reall onw

turingtest · Answer

real what? sorry?

turingtest · Answer

and PLEASE use the equation feature, sin2 means $$2\sin2$$I assume you mean$$2\sin^2x$$which is very different.

ksaimouli · Answer

$$2\sin^2x+3sinx+1=0$$

turingtest · Answer

thanks...
so are we solving or just factoring?

ksaimouli · Answer

now we are finding allsolutions from0,2pie

turingtest · Answer

well first factor the form
$$2x^2+3x+1=0$$then replace x with sin x and you should have your answer...

ksaimouli · Answer

2x+1 and x+1

ksaimouli · Answer

sin+1/2 ans sin=1

ksaimouli · Answer

wow i got u thnx

ksaimouli · Answer

hey is calculus bc is highest course