Questions Answered

osanseviero:
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Something I don't understand about summatory
 updated 4 months ago
 8 replies
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osanseviero:
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What is a monic polynomial? Are all polynomials monic?
 updated 4 months ago
 9 replies
 2 Medals

osanseviero:
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I have a circle. I know 2 points that are in the circunference. I also know one line that touches the center. How can I calculate the center…
 updated 4 months ago
 3 replies
 1 Medal

osanseviero:
Group Title
Why does this breaks the code?
<?php
$new_message = "$name : $message<br>\n";
…
 updated 4 months ago
 6 replies
 1 Medal

osanseviero:
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Derivatives question:
 updated 5 months ago
 10 replies
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osanseviero:
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Basic electricity problem
 updated 5 months ago
 6 replies
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osanseviero:
Group Title
Is this the same?
 updated 5 months ago
 8 replies
 3 Medals

osanseviero:
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Water is flowing at 25 L / min through a horizontal pipe of 7 cm of diameterunder a pressure of 6 Pa. At some point something reduces the c…
 updated 5 months ago
 1 reply
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osanseviero:
Group Title
If cot=2/5, sen<0, how much is cos?
 updated 5 months ago
 29 replies
 2 Medals

osanseviero:
Group Title
How can i solve this?
2(x2)(x+1)>0
 updated 5 months ago
 32 replies
 1 Medal

Mr.ClayLordMath:
Group Title
Why is it helpful to add labels to a blog post?
 updated 6 months ago
 3 replies
 1 Medal

activee:
Group Title
6.00 2nd lesson: the professor writes :
y = raw_input('Enter a number:')
print type y
…
 updated 7 months ago
 7 replies
 1 Medal

osanseviero:
Group Title
How to demostrate this? (complex numbers)
 updated 7 months ago
 51 replies
 2 Medals

osanseviero:
Group Title
How to demostrate this property of complex?
 updated 7 months ago
 10 replies
 1 Medal

osanseviero:
Group Title
Why is the modulus of a complex number square root of a2 + b2 ?
 updated 7 months ago
 7 replies
 1 Medal

osanseviero:
Group Title
Why is the modulus of a complex number square root of a2 + b2 ?
 updated 7 months ago
 1 reply
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osanseviero:
Group Title
How to demostrate that z+(z)=0 in complex numbers
 updated 7 months ago
 2 replies
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osanseviero:
Group Title
How to demostrate the associative property of adittion? (for complex numbers)
 updated 7 months ago
 15 replies
 1 Medal

osanseviero:
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I need to demostrate that
z+w=w+z (complex numbers)
 updated 7 months ago
 1 reply
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osanseviero:
Group Title
Limit of x*csc(2x) when x>0
 updated 7 months ago
 6 replies
 2 Medals

osanseviero:
Group Title
How to factorize this?
 updated 7 months ago
 3 replies
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osanseviero:
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Limit of next question (algebraically)
 updated 7 months ago
 2 replies
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osanseviero:
Group Title
How is the weight of an object, the weight of water and the boyancy forces related?
I know that
…
 updated 7 months ago
 7 replies
 1 Medal

osanseviero:
Group Title
Does the boyancy forces made on an object depend on weight of object, weight of fluids? Depend on weight of object or its volume?
 updated 7 months ago
 4 replies
 1 Medal

osanseviero:
Group Title
Just to check some questions
I have a cylindrical tank. With a base area =A and a height=h and a density=r
…
 updated 7 months ago
 19 replies
 2 Medals

osanseviero:
Group Title
Pressure questin (fast, just to check)
 updated 7 months ago
 5 replies
 1 Medal

osanseviero:
Group Title
The position vectors of the points A and B are (4 3) and (1 2). Which is the vector AB?
 updated 7 months ago
 61 replies
 1 Medal

waterpologoalie:
Group Title
What are the different methods of writing a vector's angle/direction (eg. navigator method, etc.)?
 updated 7 months ago
 5 replies
 1 Medal

osanseviero:
Group Title
http://newton.matem.unam.mx:8080/ejercicios/desigualdades/p0118.gif
 updated 7 months ago
 17 replies
 1 Medal

osanseviero:
Group Title
Just a reminder of factorization...how to solve this?
5a2 +7a 24
 updated 7 months ago
 8 replies
 1 Medal
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