by Fredfredburger » Sat Mar 23, 2013 10:17 pm
^^^not sure if bot or not.
18
If you subtract 2 from [unparseable or potentially dangerous latex formula] then you have an odd function, which means [unparseable or potentially dangerous latex formula]. What that means is that if [unparseable or potentially dangerous latex formula] then you can plu that into your second function as [unparseable or potentially dangerous latex formula]. Sorry if that was confusing, I believe there was another post that explained it better than I did.
24
51
D is your vertical shift, which is the center of the sin curve, vertically speaking: Here it equals 5
A is your Amp, or the maximum displacement from the vertical shift. The max is 8, 8-5=3. In addition, this sine curve is reflected over the origin, or multiplied by -1, so A=-3
You can find B through [unparseable or potentially dangerous latex formula] where P is your period, or the distance between crest. Here that distance is [unparseable or potentially dangerous latex formula] so B=2
The sine curve is centered at 0, so your Horizontal Shift, or [unparseable or potentially dangerous latex formula], is 0 and C equals 0
5-3+2+0=4
60
Look at , especially the examples.
The harmonic mean of the roots a,b, and c of a cubic polynomial is
[unparseable or potentially dangerous latex formula]
or when you express it in terms of the coefficients of the polynomial,
[unparseable or potentially dangerous latex formula] so [unparseable or potentially dangerous latex formula]
MIT '17