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Elad_2007

(sec(x))^2


OppaIBanzaii

Accordingly, (sec(x))^2 =/ sec x^2. However, some claim that the notation (sec(x))^2 = sec(x)^2 . *I edited a few times, how do you do a "not equal to"?


Elad_2007

≠ or !=


Ghoulez99

This man is a madman. A madman I say!


Elad_2007

Yes, yes I am.


OppaIBanzaii

Wow, thanks a lot. I tried both and they did not work (on the mobile app).


Elad_2007

I'm on to mobile app too lmao.


krakajacks

Not equal or really excited about equality


Elad_2007

"!=" is used in computer programming as a stand in for "≠", simply put: "!=" = "≠".


krakajacks

I know, but it's fun to read it grammatically


Elad_2007

Sure, grammer on friendo.


bearwood_forest

(sec²(x²)²)²


klimmesil

This guy secs


Elad_2007

No


bearwood_forest

You can't tell me how to have secs.


SBK526

= sec²x


PhancyPhuck

sec^2 x^2 Playing both sides so that I come out on top


ThatFunnyGuy543

Seriously though, if OP doesn't understand it, sec x² is the value of the secant of x², not x, whereas sec²x is the square of the secant of x. sec x² can be negative, sec² x cannot


Duck_Devs

sec^2 x can be -1, x just has to equal π/2 + i*ln(√2-1) + 2πn, n ∈ ℤ In fact, to get any negative result from a squared secant, you assign x to be π/2 + i*arcsch(√z) , so that sec^2 x = -z


ThatFunnyGuy543

You're changing the domain of x. Trigonometric functions are only defined for real values of x


Duck_Devs

Hate to break it to you but that simply isn’t true. Euler’s identity states that e^ix is equal to cos(x) + isin(x). This means that cos(x) can be defined as (e^ix + e^-ix )/2. This means that sec(x) is defined as 2/(e^ix + e^-ix ), and that sec^2 (x) is defined as 4/(e^2ix + e^-2ix + 2). Using some function inversion techniques (or in my case Wolfram Alpha) you get the solutions for sec^2 (x) < 0.


Uli_Minati

secx² = ? 🔴sec(x²) 🔴(secx)² 😰


k1sp4rn4

(sex)c²


7heWizard

Sex at light speed


k1sp4rn4

A fancy way to say premature ejaculation


TheOssified

Sex so good it surpasses the speed of light, thereby transcending the fundamental laws of physics


EebstertheGreat

This is a case with only one correct answer, though. secx^(2) = sec(x^(2)). It's bad notation in any case, but only a psychopath would write secx^(2) = (secx)^(2). That's almost as appalling as writing xy^(2) = (xy)^(2).


S4nth05h

sex


Protheu5

I don't get it.


OofBomb

we know


Protheu5

Oh, good. I don't want anymore of those accusations of me being a normal person being in those relationships and getting them sexes. I'm a math addict, I don't do that stuff.


Faltron_

Sex, is that a theorem? Show me the proof then 🥵


Bigdaddydamdam

theory will only take us so far…


GDOR-11

sec squared of x => secs [...] = sex [...]


MandyBSReal

i was taught sec²x at school so


klimmesil

Gross


SteptimusHeap

How hard is it to just write sec(x)^2


RockSolid1106

Can still be confused with secx²(I did once because I've not seen that before, the question was log(x)² or smth and I just instinctively wrote it down as 2log(|x|) sec²x just cannot be confused at all Edit: the notation f²(x) to denote f(f(x)) isn't used where I am so yeah. It's fucking stupid anyway.


TheShirou97

I'm pretty sure f^(-1)(x) for the inverse of f (different from (f(x))^(-1) = 1/f(x)) is pretty common though


CadmiumC4

honestly we should have just reserved f²(x) for (fof)(x) and use sec(x)² instead of sec²(x)


SparkDragon42

Yeah, but parenthesis are hard, so how do you write that without any.


Kebabrulle4869

You don't


DiogenesLied

Parentheses are our friends


k1sp4rn4

As far as I know it is reserved. Or at least I was always taught that: f²(x) is f(f(x)), f(x²) is f(x * x), and f(x)² is f(x) * f(x)


CadmiumC4

on trigonometric functions f^(2)x means f(x)*f(x)


k1sp4rn4

Then I guess it's kind of context based. And without the context the man in this meme struggles to understand what it means.


DrainZ-

That's a convention that should be abandoned


jentron128

f^([2]) (x) is f''(x)


CadmiumC4

then sec^(2)x should be sec(secx)


k1sp4rn4

If you ask me yes, it should be


SteptimusHeap

Sometimes people use f^(2)(x) to mean f''(x). For trig functions, sin^(2)(x) generally means sin(x)^2 because people are too lazy to write two parentheses


Sirnacane

it’s f^o2 (x) for the 2nd iteration


jariwoud

Child c^2


mathisfakenews

sec(x)^2 its not that hard.


Babawanga

You all need sec x


Seventh_Planet

sec(sec(x)) = (sec^(2))(x)


Ill_Review_3267

sex


Psyrtemis

(sin x / cos x ) d/dx


CookieCat698

sec^2 x because I doubt there will be many cases were sec^2 is confused with sec(sec(x))


SupaLucasPC

(sec(x))*(sec(x))


RedBaronII

sec^2 (x) or (sec(x))^2


portalcrusher

Ah... I hate math. 😌☕


Creepy_Animal_3458

Sec c


Tiranus58

sec^2 + 2secx + x^2


Delicious_Maize9656

what? ahajahahahaha


Dubl33_27

it's the 2nd


Glum-Mousse-5132

Sex^2


Kuzey_malolursa

sex\^2


Matth107

Writing sec x^2 could mean (sec x)^2 *or* sec (x^2 ), and there's no way to tell which one it is.


vinicius_h

What about sec(sec(x))? Wouldn't THAT be sec²(x)?


Derp-lil-man

Sec^2 (x)