Hi, im a grade 12 student, finishing my advanced functions at the moment, in a few short weeks i shall be taking calculus, in my last trig unit my teacher remarked that although i did well, i should brush up on my 'basic rules for algebra' from what i understand this is stuff that i dont really...
I'm a current high school student, thinking about becoming an electrician, i understand you have to get an apprenticeship in order to become an electrician, what is the roadmap or the process to get an apprenticeship?
Do i go to college and study in a program like "Electrical Engineering...
Homework Statement
Prove the following identities
31c) sin(\frac{\pi}{2}+x)=cosx
Homework Equations
sin2x+cos2x=1
The Attempt at a Solution
The idea here is to prove the identity by making LS=RS
so here is what i have done, but im not sure if it is the right way, since the book shows it...
oh hey...i think your right...even if just move in the general direction it will tell me weather or not its positive or negative...
and then i can multiply all the postives/negatives and determine weather the graph in that interval is above 0 or below 0
thanks
Homework Statement
Solve each inequality without graphing the corresponding function.
State the solution algebraically and graph on a number line:
x/x2-9≤0
so i factor out the denominator and get (x+3)(x-3) the root here is zero, but for some reason in the chart (for rational/reciprocal...
well..given the fact that they have 2 seperate distinct terms to define them(trinomial and polynomial), and they dont really use it all under the umbrella term ' polynomial' i didnt really know that they are the same thing, at least until now
#edit
do quadratics fall under polynomials as well??
you mean, trial and error?(i guess factor 'theorm'?) where after trial and error you see what turns the equation into a zero, and use that monomial to divide the equation, and via long division you find the other factor(and you then have 2 factors)
If so...i thought you could only use long...
Homework Statement
x3-13x+12=0
The book shows the following solutions, i should add that i have very little practice with factoring cubic TRINOMIALS, you see i factor trinomials through an intuitive understanding, i tried staring at the problem a few hours yesterday, tried youtube/google for...
Homework Statement
3x2-8x-1=0
Homework Equations
The Attempt at a Solution
So here i attempt to solve the equation...usually the way i go about this is
you multiply 3 by -1
you get -3
then i ask myself what multiplies to -3 and adds to -8.....after that i am able to solve...
Homework Statement
What is the inverse of this logarithm equation?
y=-log5(-x)
i tried it and i got y=-5(-x)
hm.. you know how people say that if you want to find the inverse graph of something just switch the x and y coordinates from the table of values? Well i also tried that approach...
so what is the difference between a mathematician and an actuary? Identical training and stuff? Could i be an actuary if i am a mathematician with a phd?
in terms of becoming an actuary...what is the career path one takes through school??
for instance for a mathematician they would have to...
hm... so what is an actuary? Is it like an advanced version of an accountant?
Also the reasoning behind me going into strictly mathematics is not that i want to do technical work...it is that mathematics is at the center of everything...from engineering to physics...to finance etc....
sure...
So last year i was in grade 11....and i wanted to be a mathematician, i figured id start out with undergrad in a mathematics program and eventually work my way up to a phd in mathematics and become a mathematician....however i read a joke on these forums which i sort of took to heart and became...
@ mr astronuc
Iv heard 'horror stories' regarding engineering in general, im assuming your an aerospace engineer, how is the program or was when you were in school? how intense was it? How many hours a day on average did you study? If there was a concept you didnt understand fully, were the...
yep, only carleton or u of t offer aerospace engineering....anyway you say your a 3rd year aerospace eng student, how is it? the program...the studies...how helpful are the proffs/teachers assistants?
Is it true that the 2 have a lot of overlapping curriculum? At least that's what i have heard, can an actual Aerospace engineer comment on this as well?
I ask because i want to go into aerospace engineering but up here in canada, there are like 2 schools in the entire country that offer the...
Do our genes have memory?
Say that my grandfather was in finance, and my father was in finance, and i too am in finance, and have a keen interest in it, will my child have an edge in the field of finance, over the competition because 3 generation of people went into the same field...and...
For an occasional/recreational user, is alcohol consumption once in a while harmful for your brain? I googled and i couldnt really find a straight answer, i read somewhere a while back though that Richard feynman never drank alcohol or did any drugs(he wanted to experiment with LSD) because he...
Homework Statement
Im not sure what each of the variables do in
y=cax-p +q
Homework Equations
The Attempt at a Solution
my understanding is that
-q is for vertical shifts/transformations
-p is for horizontal shifts/transformations
-and c is for vertical stretching
not...
yeah, its simple the vertical line test, what i am trying to figure out is how to get the points so i can graph the inverse function for question 25. The book says the inverse function is y=3√x