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Phi Kappa Chi ΦΚΧ <a:yeah:589703000977571860><a:ppHop:536353159615086612>
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Sunday, September 25, 2016
inverse tangent
I dont know how to take the limit of that
wait
maybe I do...
its easy
I dont even know how tan x looks
andf the test has no calulattors allowed
arctan is not tan
rip me
I know
but its the inverse
so it looks the same just truned 90 degrees
arctan of infinity is pi/2
negative infinity is -pi/2
of 0 is 0
i think
lim as x -> 1 of arctan x
or its rotated
pi/4
oh wait
I know
it is
I dont know how to do it without a calc though...
do you know the unit circle?
not really
you should
well
I dont
rip
not for tangent at least
tangent is sin/cos
so when sin=cos is when tan=1
yes
and sin = cos at a 45 degree angle
and
thats like
1 sec
pi/4
pi/4!
don't use degrees unless you have to
MATH
I DID IT
I know
I just dont have pi memorised yet
undefined
but
is it appraoching negative or positive infinity
the world will never know
positive
wait how
you dont even know the function
the numerator is positive
really
1/0
is that a shortcut?
what are we talking about?
I dont even know
lmfao
guess what i get to learn in school
I have to memorize this song
im in the highest english class they let you take wtf
are you in 3rd grade?
nope
highschool surprisingly
hey leg
thats at least 5th grade stuff right there
he said he waas in an advanced english class
I mean
Advanced fourth grade xD
we had to realearn stuff like that in advanced english
ap english
Dude i dont understand why im learning this
you never use them
