Search results

1) Tried to prove, didn't seem right. Plugged in A = 40, B = 5 degrees and realised the identity was wrong. It's meant to be \cot (A+B) = \frac{\cot A \cot B - 1}{\cot A + \cot B} 2) You are correct. Their answers are correct under the assumption that 0≤θ≤π

Are you trying to hide your original views prior to receiving new information? Otherwise, you wouldn't have only supplied your updated judgements about my statement upon obtaining new information. Firstly, remember that this is for science/maths courses. Secondly, I'm surprised that someone has...

The bold and underlined part sums up our views very well. I agree, I did that for some of my courses (i.e. rote learning filled up the majority of my studies) and got satisfactory marks. I probably wasn't clear but I didn't mean cut out rote-learning completely; only do it when it's...

Why do you think that? You missed the point by deciding to jump to conclusions. You can go ahead and take the easy way out: mindlessly memorizing the content just to get whatever desired mark OR you can understand what you're doing (and why) and attempt to gain the Graduate Attributes listed...

This an excellent way to make your degree absolutely worthless.

That's unfortunate, I've never encountered a rage quitter. I had a similar experience as you when I started; went 1W/9L then stopped for the night, lol. The first thing I learnt were combos, which was a mistake. Took me a while to adjust and learn the basics of this complex game until I saw some...

Why would it be considered as 'shitposting'? There are other ways to express gratitude other than words. Imagine you and a group of kind helpers spare some time out of multiple days to help a struggling homeless person and that person just takes your gifts without making eye contact, rarely...

What is this? boredsatan's do my maths homework and sanity check thread? Most of the time, you don't show appreciation for help you receive... and even dare to ignore some solutions. This thread is more harm than good; it's an obstacle that lessens the opportunities for you to exercise your...

I don't think you should not go to a university just because they have a notoriously difficult core unit.

This method is inefficient and is essentially directionless because you don't know the exact cause of these silly mistakes. Well said. Good work habits leads to a less cluttered mind and more organised working space (on paper). Our strategies are very similar, but the distinction is that I put...

You can fix these but I want hear Drongoski's strategy before I share mine. Let's assume that the person is a master of differentiation so he/she did not differentiate the constant. I tried to make it obvious that this mistake was not made due to misunderstanding of differentiate.

Examples of what you classify as "truly silly mistakes" are: 3*3 = 6, d/dx (2e^{2x} + x) = 2*2e^{2x} + 1 = 4e^{2x} (failed to write +1), right? If so, how would you remedy this and prevent in the future?

What is interesting to one person may not be interesting to another person. Thus, I think you need to be more specific on what it means for something to be interesting.

Do you know specifically why you are getting unsatisfactory marks? You need to figure out why before you can fix it. Exams are there to assess your mastery of the material. Any deficits will be apparent and if these are left unchecked, then you may not have enough foundation to understand future...

How's the game so far?

Look at another simple example. Define f: R -> R such that f(x) = x^2 and let X be a random variable with gamma distribution, say. Prove that f(X) = X^2 > 0. It's obvious that this is true because you're just squaring positive random variables and they stay positive. But how does it make...

The point I'm making is that how can a random variable exist alone without specification of it's probability? Example, X is gamma random variable with whatever parameters. Prove that X > 0. How does this make sense? It should be prove that P(X > 0) = 1.

It's important that you do these in order because it acts as a guide. You'll use part (j) to do part (j+1).

He's a machine!

(Q \sqrt{D} Q^T)(Q \sqrt{D} Q^T) = Q \sqrt{D} (Q^T Q) \sqrt{D} Q^T = Q D Q^T = A