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• 05-23-2018, 01:00 PM
Unfortunately, nothing you did on #12 is correct. You appear to have just arbitrarily decided that the triangle is a 30-60-90 triangle, but this is...
11 replies | 213 view(s)
• 05-22-2018, 09:24 PM
Typically a good place to start with problems like these is just to write down every piece of information you're given and then see what else you can...
9 replies | 205 view(s)
• 05-22-2018, 12:35 PM
It looks like the problem statement is written in black, and your work is in red. So the problem statement is: \left(P \vee \neg(\neg(\neg Q))...
2 replies | 50 view(s)
• 05-21-2018, 12:26 AM
Hm. A very interesting math puzzle. At first I was completely stymied and thought maybe the trick was that there wasn't an answer. But then I...
3 replies | 164 view(s)
• 05-20-2018, 03:32 AM
Here's a big hint that will take you almost all of the way: -C is notational shorthand for (-1)C.
5 replies | 161 view(s)
• 05-17-2018, 07:06 PM
I definitely concur with Subhotosh Khan that it "looks like gibberish," but here's some of what I think it means. \frac{9}{3} + 2\% - (x + y) + dx...
2 replies | 122 view(s)
• 05-15-2018, 08:38 PM
Oh, whoops! Yes, I made a small typo. Sorry about that. I'm glad you figured out what I meant though, and it didn't lead you too far astray. I'll go...
12 replies | 431 view(s)
• 05-15-2018, 12:30 PM
Well, you ended up with the right answer, so that's good. But your method is absolutely incorrect, and it's very unclear as to what you actually did....
12 replies | 431 view(s)
• 05-12-2018, 11:23 AM
What are your thoughts? What have you tried? Please re-read the Read Before Posting thread that's stickied at the top of each subforum, and comply...
4 replies | 244 view(s)
• 05-09-2018, 09:15 PM
Generally speaking, maximization/minimization problems are in the domain of calculus. Have you learned any calculus techniques, such as derivatives,...
5 replies | 249 view(s)
• 04-27-2018, 06:24 PM
Ah, okay. Well, in that case, in general, finding the zeroes of an infinite series is something that can be fairly easily or extremely difficult....
5 replies | 284 view(s)
• 04-27-2018, 12:26 PM
Erm... sorry, but I don't understand what you're asking. You mention "infinite series," but the example you show is definitely not infinite. The...
5 replies | 284 view(s)
• 04-25-2018, 06:33 PM
My solution was similar, but it did involve the change-of-base formula at one point. Here were my steps: 2^{log_3(5)} = 5^{log_3(2)} ...
11 replies | 421 view(s)
• 04-25-2018, 12:02 PM
That sure is a nice problem you have there... but what are your thoughts? What have you tried? Please re-read the Read Before Posting thread that's...
11 replies | 421 view(s)
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