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Dr.Peterson
replied to the thread
calculus problem: For which non-negative values of a does the function y=(x^2+3x)/x+a have a clear discontinuity point?
.
@mario99's advice provides a good hint, assuming that what "clear discontinuity point" means is a point at which there is a...
12 minutes ago
M
mario99
replied to the thread
calculus problem: For which non-negative values of a does the function y=(x^2+3x)/x+a have a clear discontinuity point?
.
If \displaystyle y = \frac{x^2 + 3x}{x + a}, then they want you to factor the numerator and cancel some of it with the denominator...
Today at 7:29 PM
M
mario99
reacted to
fresh_42's post
in the thread
Pi Day, 3.14 approximation
with
Like
.
Nice area.
Today at 7:17 PM
topsquark
replied to the thread
Vectors in equilibrium: A body is acted on by 3 forces in the (x,y)-plane. T_3 = 30.0j N, angle is 20.0 degrees, body is at equilibrium
.
T_1 is 11 N. (To 2 sig digs.) You left off a sin(20) on line 6 on the right. -Dan
Today at 6:30 PM
blamocur
replied to the thread
f(x) = sqrt( (e^x) - 1 ): find the domain, find 1st and 2nd derivatives, and test for concavity
.
Multiplying both numerator and denominator by 2\sqrt{e^x-1} worked better for me.
Today at 5:52 PM
blamocur
reacted to
stapel's post
in the thread
calculus problem: For which non-negative values of a does the function y=(x^2+3x)/x+a have a clear discontinuity point?
with
Like
.
What you have posted means the following: \qquad y = \dfrac{x^2 + 3x}{x} + a Was this what you meant? Because, if so, I can understand...
Today at 5:43 PM
stapel
replied to the thread
f(x) = sqrt( (e^x) - 1 ): find the domain, find 1st and 2nd derivatives, and test for concavity
.
I get the same result. Now try simplifying the second half of the expression by breaking the one fraction into two: \qquad...
Today at 5:12 PM
Dr.Peterson
replied to the thread
How would you solve positive integer adding to a certain number questions.
.
I think you're saying that the last paragraph is someone else's explanation, and you don't understand it. Can you tell us more...
Today at 5:04 PM
stapel
replied to the thread
calculus problem: For which non-negative values of a does the function y=(x^2+3x)/x+a have a clear discontinuity point?
.
What you have posted means the following: \qquad y = \dfrac{x^2 + 3x}{x} + a Was this what you meant? Because, if so, I can understand...
Today at 5:00 PM
Dr.Peterson
replied to the thread
Please help with this: In triangle XYZ, side y is 8cm, side z is 5cm, and the measure of angle Y is 75 deg; find the length of side x
.
You've stated the Law of Sines; now apply it in the only way possible. It won't take you immediately to the goal, but you'll be closer...
Today at 4:56 PM
stapel
replied to the thread
help please
.
You've posted a picture containing four named shapes, various parts of which are shaded, and given us a cryptic reference to whatever...
Today at 4:53 PM
A
annaanna
replied to the thread
Vectors in equilibrium: A body is acted on by 3 forces in the (x,y)-plane. T_3 = 30.0j N, angle is 20.0 degrees, body is at equilibrium
.
There's a high chance I'm doing something stupid cause that's been happening a lot these days but I dont understand why what I did in...
Today at 2:03 PM
topsquark
replied to the thread
Vectors in equilibrium: A body is acted on by 3 forces in the (x,y)-plane. T_3 = 30.0j N, angle is 20.0 degrees, body is at equilibrium
.
Start with the first (the x) equation. Can you solve for T_2 in terms of T_1? Plug that value of T_2 into the second (the y) equation...
Today at 1:42 PM
A
annaanna
replied to the thread
Vectors in equilibrium: A body is acted on by 3 forces in the (x,y)-plane. T_3 = 30.0j N, angle is 20.0 degrees, body is at equilibrium
.
I need help
Today at 12:20 PM
D
Dana04
posted the thread
Please help me understand and solve the second-order DM: yy" + y = (y')^2
in
Differential Equations
.
Hello, please help me to understand and solve the equation: yy'' + y = (y')^2
Today at 12:08 PM
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