Math Iic Discussion Thread

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261

<p>
[quote]
you can't put 0^0 power are you kidding me</p>

<p>the answer is 0.8, graph the calculator, set the x min at -5, x max at 5, and set the intervals at .2, and you'll see that it approaches 0.8

[/quote]
</p>

<p>Zoom in like 3-4 times at (0,1) and trace the graph at the closest point to the y axis. The more you zoom the closer the function gets to 1.</p>

<p>If you don't believe the graph, try plugging in very small values like .000001, then .000000001, you can see they're approaching 1 as the x value gets smaller and smaller.</p>

262

<p>"you can't put 0^0 power are you kidding me</p>

<p>the answer is 0.8, graph the calculator, set the x min at -5, x max at 5, and set the intervals at .2, and you'll see that it approaches 0.8"</p>

<p>Of course you can, and people do. However, I will admit that it can be indeterminate. For the purposes of the limit, it's effectively 1. Try .00000000001^.00000000001</p>

263

<p>Yeah I remember trying to do 0^0 on the calculator, wondering which rule will prevail (to the power of 0 always = 1 or 0 to any power always = 0), stupid thing just gave me a domain error.</p>

264

<p>i dont know what problem you guys are talking about, but i couldnt resist pointing out that 0^0 is always chosen as undefined. however, i've noticed that using it as one SOMETIMES (not always) works for figuring out problems.</p>

<p>Edit: i looked back and page and saw the problem being lim as x-->0 for x^x, and that indeed is 1.</p>

265

<p>wats the final answer to the log ? askin, which of the following isnt equal to 2? i put log base 2 of 5..idk why some people say log base 2 of 10, was that even a choice??</p>

266

<p>all the other choice besides log base 2 of 5 were equal to two, besides that one, which was choice C!!?</p>

267

<p>omg that means my calculator failed me for that question!!!! cuz i would have put 1, but i zoomed in and it gave me 0.8 wow</p>

268

<p>Don't count on zooms :P Use tables when it asks specifically for a value at a specific point, or plug in the number.</p>

269

<p>how accurrate are the sparknotes conversion chart? (for anybody who took the test before)</p>

270

<p>Ans for limit question is def 1.
Do u guys remember st like f(x)= (x,y,z) and g(x)=..... I actually dont understand wat they r asking. N wat a shame 4 me since I'm in BC Calculus!!!!! T___T</p>

271

<p>i miss 2 on the test so far that i know of</p>

<p>oh i think it was 0,z,0 or something, but i remember i knew how to do it</p>

272

<p>dramaaddict: answer was (0,z,0)</p>

<p>and btw, if you did lim(x^x, x, 0) your 89 would have
told you one.</p>

273

<p>for the Log question that everyone is arguing about, what was the letter for the correct answer, was it E?</p>

274

<p>What?! I put that into my 89. All I got was domain error.</p>

275

<p>"What?! I put that into my 89. All I got was domain error."</p>

<p>Me too, so then I graphed it :P</p>

<p>The answer was 0,z,0? I thought there was a y somewhere there...</p>

276

<p>Ya the answer was 0,z,0 if I remember clearly</p>

277

<p>Yes, definitely (0,z,0).</p>

278

<p>Actually, could someone explain that question to me? I totally did not understand it.</p>

279

<p>maybe it's because i have a ti-89 titanium?
as opposed to regular.</p>

280

<p>F(x,y,z)=(0,y,z)
G(x,y,z)=(y,z,x)</p>

<p>Q: G[F(x,0,z)]
F(x,0,z)=(0,0,z)
G(0,0,z)=(0,z,0)</p>