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Calculus! For beginners, with a ‘no theorems’ approach!
Minor error in [i]y’[/i], because:
$$(\sin 2x)’=2 \cos 2x$$
If in doubt:
Set:
$$u=2x ... |
23-3-2016 at 13:36
by: blogfast25 |
Coordination bond in chrome alum
[rquote=442933&tid=65692&author=morsagh]When solution of chrome alum KCr(SO4)2 is heated ab ... |
23-3-2016 at 08:55
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
The last five. They're not particularly difficult but I have 'mixed things up a bit':
$$y=\frac{4 ... |
23-3-2016 at 06:40
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
@aga:
[b]Apart from a few silly mistakes they're all good![/b]
Wrong:
$$v'=2\Big(a+\frac1x) ... |
22-3-2016 at 16:56
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[b]1. Chain rule exercises:[/b]
Recapping the rule. If:
$$f(u)$$
with u a function of x:
... |
22-3-2016 at 08:05
by: blogfast25 |
pipettes
[rquote=442787&tid=65657&author=Metacelsus]
Mouth Pipetting: Not Even Once
[/rquote]
I ... |
22-3-2016 at 06:57
by: blogfast25 |
pipettes
Mouth aspirating non-toxic liquids like water or very dilute acids/bases is OK though. |
22-3-2016 at 06:13
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
This exercise got a bit overlooked, so I'll just post the solution here:
$$z=\frac{\ln x}{x-5}\:\ ... |
21-3-2016 at 19:28
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
Tomorrow:
Simple chain rule exercises. Fun and games! |
21-3-2016 at 15:46
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=442739&tid=65532&author=aga]That's 4 out of 38 which is 100% !
Woohoo ![/rquote]
... |
21-3-2016 at 15:45
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=442728&tid=65532&author=aga]The next ones look harder.
Here goes ..
$$y=\frac{\s ... |
21-3-2016 at 15:36
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
@aga:
Not sure where you're coming from with:
$$\frac{x}{y}=0$$
That would be true for:
... |
21-3-2016 at 15:27
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
We'll accept green.
The following for today/tomorrow:
[b]Polynomials:[/b]
$$y=3x^{-2}-7x^3+ ... |
21-3-2016 at 13:07
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
Yup, history in the making: first successful derivations (2) by aga on SM! Lift off but we probably ... |
21-3-2016 at 09:38
by: blogfast25 |
Dissolution of tungsten in H2O2
[rquote=442667&tid=65593&author=urenthesage]
The yellow salt should be tungsten III oxide ... |
21-3-2016 at 05:39
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
Thank you, j_sum1. |
21-3-2016 at 05:21
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=442660&tid=65532&author=aga][rquote=442623&tid=65532&author=blogfast25]Maybe ... |
21-3-2016 at 05:18
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=442601&tid=65532&author=aga]
Add-ups, take-aways, times-bys, share-bys, basic algeb ... |
20-3-2016 at 16:35
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
[rquote=442571&tid=65532&author=aga]
Is that right, or did i just imagine an easy way ?
... |
20-3-2016 at 13:21
by: blogfast25 |
pipettes
A burette has more in common with a [i]graduated pipette.[/i] Bulb pipettes can only deliver one siz ... |
19-3-2016 at 16:01
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
$$=-\infty$$
You tryin' to tell me somethang, mistah? 
So, what can we do by way of... ermm. ... |
19-3-2016 at 15:58
by: blogfast25 |
pipettes
[rquote=442513&tid=65657&author=aga]
What is the definition ?[/rquote]
A volumetric devi ... |
19-3-2016 at 15:21
by: blogfast25 |
Calculus! For beginners, with a ‘no theorems’ approach!
And related to the operator Del, is the nabla:
$$\nabla=\Big(\frac{\partial}{\partial x},\frac{\p ... |
19-3-2016 at 10:10
by: blogfast25 |
When a derivative becomes zero...
Consider the following smooth and continuous generic function [i]y=f(x)[/i]:
[file]49131[/file]
... |
19-3-2016 at 09:06
by: blogfast25 |
Two FREE tools you probably didn't even know you had!
[rquote=442433&tid=64755&author=j_sum1]
I downloaded and use chemsketch. No registration w ... |
19-3-2016 at 06:44
by: blogfast25 |
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