Talk to Q
Posted: Fri Mar 04, 2005 9:15 pm
Ok, here it is, the ask Q thread. Shoot away.
Page 1 of 1
Posted: Fri Mar 04, 2005 9:17 pm
how old are u again??
Posted: Fri Mar 04, 2005 9:19 pm
I'll be 16 on the 17th of this month.
Posted: Fri Mar 04, 2005 9:24 pm
Q, you've been in Geometry, right? How exactly does one use Sine, Cosine, Tangent, Cotangent, etc.? I'm failing this stupid class..
And why does my teacher take points off for writing "Sin" like this:
And why does my teacher take points off for writing "Sin" like this:
Posted: Fri Mar 04, 2005 9:26 pm
what kinda link is THAT?
lol thats great Q, ur older than i thought
lol thats great Q, ur older than i thought
Posted: Fri Mar 04, 2005 9:35 pm
I can't get to that link up there.
But anyway, sin, cosine, and tangent are the three basic trig. functions.
In a right triangle, you have the two legs, usually called the opposite and adjacent, and the hypotenuse (the longest side, which is always opposite from the right angle).
Sine is the ratio between the opposite and the hypotenuse. The opposite leg is the leg opposite of the smallest angle in the triange.
So, if we have side measures of 10, 5, and 2, you would know that 10 is the hypotenuse, and 2 is the opposite. Sine equals opposite over hypotenuse, or 2/10, which is 1/5, or .2.
Cosine is the same, but with the adjacent leg instead of the opposite. (adjacent/hypotenuse)
So, if we use 10, 5, and 2 again, it would be 5/10, or .5.
Tangent is opposite/adjacent, which would be 2/5.
An easy way to remember this is by SOH-CAH-TOA.
The first letter in each set above is sine, cosine, or tangent, and the next two are what they are.
For instance, SOH: Sine, opposite/hypotenuse.
But anyway, sin, cosine, and tangent are the three basic trig. functions.
In a right triangle, you have the two legs, usually called the opposite and adjacent, and the hypotenuse (the longest side, which is always opposite from the right angle).
Sine is the ratio between the opposite and the hypotenuse. The opposite leg is the leg opposite of the smallest angle in the triange.
So, if we have side measures of 10, 5, and 2, you would know that 10 is the hypotenuse, and 2 is the opposite. Sine equals opposite over hypotenuse, or 2/10, which is 1/5, or .2.
Cosine is the same, but with the adjacent leg instead of the opposite. (adjacent/hypotenuse)
So, if we use 10, 5, and 2 again, it would be 5/10, or .5.
Tangent is opposite/adjacent, which would be 2/5.
An easy way to remember this is by SOH-CAH-TOA.
The first letter in each set above is sine, cosine, or tangent, and the next two are what they are.
For instance, SOH: Sine, opposite/hypotenuse.
Posted: Fri Mar 04, 2005 9:47 pm
i find soh-cah-toa pretty stupid XD its not as clear as the please excuse my dear aunt sally shit from elementry XD
ionno i guess its fine but i COMPLETELY lost interest after withnessing a buncha dumbass nerds chanting "SOH CAH TOA! SOH CAH TOA! SOH CAH TOA! SOH CAH TOA!..."
ionno i guess its fine but i COMPLETELY lost interest after withnessing a buncha dumbass nerds chanting "SOH CAH TOA! SOH CAH TOA! SOH CAH TOA! SOH CAH TOA!..."
Posted: Sat Mar 05, 2005 9:19 am
Sin = the inverse of the sin
sin = basic trig function
you shouldnt need these in geometry.
If your interested take a look at cot sec and csc.
sin = basic trig function
you shouldnt need these in geometry.
If your interested take a look at cot sec and csc.
Posted: Sat Mar 05, 2005 12:15 pm
*gets geometry book*
see? Chapter 8, Section 5, introduction of tan, Section 6 is full of sin cos and tan questions.
see? Chapter 8, Section 5, introduction of tan, Section 6 is full of sin cos and tan questions.
Posted: Sat Mar 05, 2005 2:54 pm
Thank you!
I'm sorry if that image didn't load. I have no idea, I did the gay tag right.
I'm sorry if that image didn't load. I have no idea, I did the gay tag right.
Posted: Sat Mar 05, 2005 4:31 pm
thats ur "sin"?? o.O
i would take points off..
i would take points off..
Posted: Sat Mar 05, 2005 4:34 pm
wtf ?
Posted: Sat Mar 05, 2005 5:54 pm
As Q plainly knows the sin, cos, and tan are the basic TRIGONOMETRY functions.palmboy5 wrote:*gets geometry book*
see? Chapter 8, Section 5, introduction of tan, Section 6 is full of sin cos and tan questions.
I could care less what books they appear in they are trig functions... end of story
Posted: Sun Mar 06, 2005 6:56 pm
I needed to know them in geometry, but hardly. Hardly.