kev360 wrote:
eh, i haven’t learned derivatives or tangents, so i can’t answer the first two.
supplementary means it is a 180 degree angle, complementary means it is a 90 degree angle.
and, dude, i am WAY to fucking lazy to do factoring right now...haha
Just for clarification, its not tangents, is trigonometric functions.
And, quit being lazy.
whatever, i took the first big word that came to my head (seriously). haha.
and, no....lol. i know i can do it. i did that stuff last year. since then i bumped myself into an honers class, and i still have the 6th highest grade in the class (with a 95%).
so, what level is that? algebra 2, trig, or calc.? or do you measure it like that where you go to school? (different countries seem to tend to have different classes and such.)
kev360 wrote:
eh, i haven’t learned derivatives or tangents, so i can’t answer the first two.
supplementary means it is a 180 degree angle, complementary means it is a 90 degree angle.
and, dude, i am WAY to fucking lazy to do factoring right now...haha
Just for clarification, its not tangents, is trigonometric functions.
And, quit being lazy.
whatever, i took the first big word that came to my head (seriously). haha.
and, no....lol. i know i can do it. i did that stuff last year. since then i bumped myself into an honers class, and i still have the 6th highest grade in the class (with a 95%).
so, what level is that? algebra 2, trig, or calc.? or do you measure it like that where you go to school? (different countries seem to tend to have different classes and such.)
I’m basing it off of the heirarchy of math, at least in the US or as far as I’ve seen.
Algebra 1, Geometry, Algebra 2, Pre-Calculus/Trig, Calculus I, Calculus II, etc.
And that quadratic is probably a good mix between Geometry and Algebra 2.
kev360 wrote:
eh, i haven’t learned derivatives or tangents, so i can’t answer the first two.
supplementary means it is a 180 degree angle, complementary means it is a 90 degree angle.
and, dude, i am WAY to fucking lazy to do factoring right now...haha
Just for clarification, its not tangents, is trigonometric functions.
And, quit being lazy.
whatever, i took the first big word that came to my head (seriously). haha.
and, no....lol. i know i can do it. i did that stuff last year. since then i bumped myself into an honers class, and i still have the 6th highest grade in the class (with a 95%).
so, what level is that? algebra 2, trig, or calc.? or do you measure it like that where you go to school? (different countries seem to tend to have different classes and such.)
I’m basing it off of the heirarchy of math, at least in the US or as far as I’ve seen.
Algebra 1, Geometry, Algebra 2, Pre-Calculus/Trig, Calculus I, Calculus II, etc.
And that quadratic is probably a good mix between Geometry and Algebra 2.
ok, yeah, that looks right. sept, i think trig is before pre-calc., and pre-calc. is sorta a half step. yeah, cuz i’m pretty sure my school has a class algebra 2/trig.
hmm, so i should be learning that stuff. i’m only about half way through the year, so yeah...haha
well, i gtg finish my homework so i can go to a concert tonight.
kev360 wrote:
ok, yeah, that looks right. sept, i think trig is before pre-calc., and pre-calc. is sorta a half step. yeah, cuz i’m pretty sure my school has a class algebra 2/trig.
hmm, so i should be learning that stuff. i’m only about half way through the year, so yeah...haha
well, i gtg finish my homework so i can go to a concert tonight.
My school has Pre-Calc before Trig in the same course, a semester for each. I’m sure it varies though.
I’m just throwing this stuff out to see if anyone plans to look it up. But I don’t expect answers if no one has any idea whatsoever.
k, for some reason i can’t get this one...its really pissing me off so i thought to myself “fuck it, i’ll look in the back." but, for whatever reason, it wasn’t there. show me why i’m retarded here...
6y + 2 = 2y^2 - 6 (yeah, yeah, i know, algebra, i should be getting this. btw, i’m sure of the numbers. i had to do a bit of work to get them, but i’m sure they are right.)
i can’t think of anything to put there...i figure either i’m doing something wrong or the book is wrong...QQ i hate this kinda thing. lol. fucking factoring...
kev360 wrote:
6y + 2 = 2y^2 - 6
i keep going through like this:
0 = 2y^2 - 6y - 8
- good - put everything on one side
kev360 wrote:
0 = 2 (y^2 - 3y -4)
- good factor out the two
kev360 wrote:
(y - ?) (y + ?)
Divided by two, which is fine (you might want to show the extra step).
Here’s where you think. Last term you have to factor. What times what equals 4? And take into consideration - what combination (addition or subtraction) of the factors produces 3 when added together (the middle term).
*Usually* I don’t worry about signs until the end, but some people do.
trial 1: 4=2*2 -> 2+2=4 (no) 2-2=0 (also no)
trial 2: 4=1*4 -> 4+1=5 (no) 4-1=3 (bingo)
so you know it’s (x?4)(x?1)
You have to place the + and - signs now.
obviously since the last term is minus, you know one is minus and the other is plus. now what combo gives you -3 when added together?
4-1 = +3 (no)
-4+1 = 3 (bingo)
kev360 wrote:
6y + 2 = 2y^2 - 6
i keep going through like this:
0 = 2y^2 - 6y - 8
- good - put everything on one side
kev360 wrote:
0 = 2 (y^2 - 3y -4)
- good factor out the two
kev360 wrote:
(y - ?) (y + ?)
Divided by two, which is fine (you might want to show the extra step).
Here’s where you think. Last term you have to factor. What times what equals 4? And take into consideration - what combination (addition or subtraction) of the factors produces 3 when added together (the middle term).
*Usually* I don’t worry about signs until the end, but some people do.
trial 1: 4=2*2 -> 2+2=4 (no) 2-2=0 (also no)
trial 2: 4=1*4 -> 4+1=5 (no) 4-1=3 (bingo)
so you know it’s (x?4)(x?1)
You have to place the + and - signs now.
obviously since the last term is minus, you know one is minus and the other is plus. now what combo gives you -3 when added together?
4-1 = +3 (no)
-4+1 = 3 (bingo)
So you have 0=2(x-4)(x+1)
oh, shit, i was trying to do them backwards (what multiplies together to be -3, and adds together to be 4). lol. that makes sense. wow, its been way to long since i did that stuff. always did hate factoring though..
Also, if you REALLY wanted, you could always do (-b)+/-[sqrt(b^2-4ac)]/2a
Helps factoring stuff if you can’t break it up using the normal tricks. (Stuff with answers like 2.679876, ect) An easy way to remember that formula is. “A negative dude(-b) was wishy washy(+/-) about going to a radical(sqrt)party where there was a square guy(b^2) who gave away four ace cards(4ac) and they all went home at 2AM(/2a)."
RageOverdose wrote:
What’s the anti derivative of 5x^5?
Or, rather, what does 1 + tan^2x equal?
Going lower, what is a supplementary and complementary angle?
Lower even, find x: 1/2x = 2x + 5 - x^2.
(the 1/2x is read as “one-half times x," because it can look like “one over two times x."
BTW, derdev, don’t answer these.
I’m bored so I’m going to answer the ones that nobody else will get:
1. (5x^6)/6
2. Sec^2x
You have to remember BTW that when you use the antiderivative, the unit you divide the equation with is the NEXT power, not the current one. if you had used 5x^4 it would have come out to an even x^5.
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