Tonks
 Name:
 Brian Tonks
 School:
 The Sharon Academy
 About:
 I have taught by tutoring since I was little. Now I'm big and I still do it! And Yes, I am sad that J.K.Rowling killed off my family.
Most Active Subjects

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Questions Asked

Tonks:
Group Title
Does anyone have a simple counter example showing why dy/dx cannot be treated as a ratio?
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics

Tonks:
Group Title
Calc Help...
What is the worst that can happen if I treat dy/dx as a fraction?
 updated 11 months ago
 4 replies
 No Medals Yet
Mathematics

Tonks:
Group Title
Calculus help!
Why can't dy/dx be treated as a fraction? I can't find a counter example to why, please help.
 updated one year ago
 7 replies
 No Medals Yet
Mathematics

Tonks:
Group Title
How do you prove cos(2x) = ... using the unit circle?
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

Tonks:
Group Title
A group of n 3x3x3 cubes are disassembled and then by adding in one more cubic unit, are reassembled to form a single mxmxm cube. How many …
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

Tonks:
Group Title
Are there any good examples of squeeze theorem that don't use sin(1/x) or cos(1/x)?
 updated 2 years ago
 4 replies
 1 Medal
Mathematics

Tonks:
Group Title
I have read the "How to think like a programmer" and done the codeacademy exercises. How essential is the video lecture, I've watched 10 m…
 updated 2 years ago
 15 replies
 2 Medals
Mathematics

Tonks:
Group Title
4. The two drawings below both graphically define tangent on the unit circle. How do these two relate to each other?
 updated 2 years ago
 9 replies
 2 Medals
Mathematics

Tonks:
Group Title
More fun:
0 = 0
=0+0+0+0+0+...
…
 updated 2 years ago
 10 replies
 7 Medals
Mathematics

Tonks:
Group Title
Riddle: My friend and his sister are identical twins. So what gives?
 updated 2 years ago
 10 replies
 3 Medals
Mathematics

Tonks:
Group Title
Cardinality of infinities:
…
 updated 2 years ago
 No Medals Yet
Mathematics

Tonks:
Group Title
Do complex roots always occur in pairs?
 updated 2 years ago
 4 replies
 2 Medals
Mathematics

Tonks:
Group Title
How do I make Python 2.7 the default in Idle instead of it launching 3?
 updated 2 years ago
 6 replies
 2 Medals
Mathematics

Tonks:
Group Title
Can an irrational number be raised to a nontrivial rational power to result in a rational value?
Trivial powers include zero, and thing…
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

Tonks:
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When in chat my posts go up twice. Is that a lag problem on my end or was there something else going on, like too many people in the chat?
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

Tonks:
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How do I find the zeroes of a third degree polynomial? a^3  2a^2  4a + 8 = 0 for example
 updated 2 years ago
 No Medals Yet
Mathematics

Tonks:
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Challenge: How many 6sided dice does it take to make rolling any 6 more likely than not?
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

Tonks:
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Riddle: How many 6sided dice does it take to make rolling any 6 more likely than not? Show your work.
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

Tonks:
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What are the odds of rolling a 6 on any of 3 dice?
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

Tonks:
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Two line segments of equal length form a T inscribed in a circle. Find their length.…
 updated 3 years ago
 3 replies
 No Medals Yet
Mathematics

Tonks:
Group Title
explain how e^(ix) = cosx + i*sin(x) please
 updated 3 years ago
 3 replies
 1 Medal
Mathematics

Tonks:
Group Title
A circular hole has a stack of narrow boards next to it, all the length of the radius of the circle. There is nothing to attach the boards…
 updated 3 years ago
 35 replies
 1 Medal
Mathematics

Tonks:
Group Title
I'd also like to be able to refer a person to someone else's question, or search questions. Many times someone comes on and asks an identi…
 updated 3 years ago
 2 replies
 1 Medal
Mathematics

Tonks:
Group Title
I wonder if I could see a list of icons refering to questions I recently posted replies to for a quick reference?
 updated 3 years ago
 2 replies
 1 Medal
Mathematics

Tonks:
Group Title
Why is the portion of a word that is spelled ass in a question being replaced with "retrice"? I can understand the word on its own, but …
 updated 3 years ago
 4 replies
 1 Medal
Mathematics

Tonks:
Group Title
Anyone on who knows some group theory?
I'm stuck:
Prove that G cannot have a subgroup H with…
 updated 3 years ago
 10 replies
 1 Medal
Mathematics

Tonks:
Group Title
Prove that G cannot have a subgroup H with
H = n1, where n = G > 2
 updated 3 years ago
 No Medals Yet
Mathematics

Tonks:
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for WorldBoy:
f(x)=7/2x 3
g(x)=2x+6/7
 updated 3 years ago
 12 replies
 1 Medal
Mathematics

Tonks:
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The Chat Group has some predatory action happening in it, is there a way to report someone?
 updated 3 years ago
 5 replies
 1 Medal
Mathematics

Tonks:
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When a question is asked that has been asked before, there isn't an easy way to call it up again.
 updated 3 years ago
 1 reply
 No Medals Yet
Mathematics
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