klimenkov
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Questions Answered

camerondoherty:
Group Title
Help?
 updated 11 days ago
 12 replies
 1 Medal
Mathematics

klimenkov:
Group Title
My English is not perfect, so please help me to correct mistakes in resume.
…
 updated 15 days ago
 6 replies
 2 Medals
Mathematics

klimenkov:
Group Title
Two points on the plane \(A\) and \(B\) are given. \(AB = 2\). \(C\) is a randomly picked point in the circle of the radius \(R\) with the…
 updated one month ago
 37 replies
 5 Medals
Mathematics

oksuz_:
Group Title
help!!
 updated one month ago
 8 replies
 2 Medals
Mathematics

klimenkov:
Group Title
\[\int_{\frac{\pi}2}^{\frac{\pi}2} \frac{\sin^{2014}x}{\sin^{2014}x + \cos^{2014}x} \, dx\]
 updated one month ago
 20 replies
 4 Medals
Mathematics

hartnn:
Group Title
f(z)=(x^33xy^2+2xy)+ i(3x^2 yx^2+y^2y^3) is analytic, find \(f^' (z)\) & f(z) in terms of z
 updated one month ago
 50 replies
 4 Medals
Mathematics

BSwan:
Group Title
did u see that proof for why in any 3 digit number in base b, must have only one of these 3 digit numbers that satisfies the equation 1/(b…
 updated 2 months ago
 11 replies
 No Medals Yet
Mathematics

ltp1212:
Group Title
Write the equation of the line that is perpendicular to the given segment and that passes through the point (–6, –3).
 updated 2 months ago
 3 replies
 No Medals Yet
Mathematics

FeniGo:
Group Title
How to prove that the quadrilateral formed by joining the midpoints of adjacent sides of a rectangle is a rhombus?
 updated 2 months ago
 3 replies
 2 Medals
Mathematics

shubhamsrg:
Group Title
(sqrt2^(sqrt2^(sqrt2....))))=x
Solving it via conventional method yields x=2 and 4.
How do I find out which one it is ?
 updated 2 months ago
 5 replies
 1 Medal
Mathematics

DejanaThuston:
Group Title
Which of the following functions represents a cell phone bill if there is a monthly charge of 20 dollars plus 6 cents for each minute of us…
 updated 2 months ago
 2 replies
 No Medals Yet
Mathematics

geerky42:
Group Title
The radius, r, of the base of a circular cylinder increases by 2 feet per second while the height, h, decreases by 1 foot per second. How fa…
 updated 2 months ago
 2 replies
 2 Medals
Mathematics

AshEatsRainbows:
Group Title
2 + a + b = a + 2 + b is an example of which algebraic property?
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics

izhangy:
Group Title
what is 4^(3/2)? How do you show work for it?
 updated 11 months ago
 33 replies
 2 Medals
Mathematics

connexus.com:
Group Title
Ok so on this what do I do
(Please don't give me the answer I just want to know what I need to do on it)
…
 updated 11 months ago
 33 replies
 3 Medals
Mathematics

Loser66:
Group Title
If A is an n x n matrix function such that A and \(\frac{dA}{dt}\)are the same function, then A = c\(e^tI_n\)for some constant c.
True or f…
 updated 11 months ago
 18 replies
 5 Medals
Mathematics

TimmyG:
Group Title
I need help with finding the inverse of this function, 2x^5+x^3+1.
 updated 11 months ago
 42 replies
 3 Medals
Mathematics

My15girl:
Group Title
This is discrete functions. Can someone please help?? I can't figure out what I am doing wrong. I am supposed to get the indicated sum, but…
 updated one year ago
 10 replies
 2 Medals
Mathematics

onegirl:
Group Title
Find all critical numbers and use the Second Derivative Test to determine all local extrema. y = x^3  3x^2  9x
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

appleduardo:
Group Title
whats the integral for x^4 / (1x) ??
 updated one year ago
 6 replies
 4 Medals
Mathematics

helpmeplease123451:
Group Title
please help me simplify this equation!! i will give a medal! i am so confused
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

Haruhi:
Group Title
Write y = 3x as a logarithmic function.
Is it x = log3^y?
 updated one year ago
 7 replies
 1 Medal
Mathematics

Ted.knows.it:
Group Title
Prove the following inequality: equation attached.
 updated one year ago
 23 replies
 2 Medals
Mathematics

qwerty54321:
Group Title
Is it true that if F is a plane vector field such that ∮_c(F.dr)=0 for every closed curve C, then ∫_c(F.dr)=0 for every curve C? Please expl…
 updated one year ago
 8 replies
 No Medals Yet
Mathematics

thisisarri:
Group Title
Which part of the quadratic formula tells you whether the quadratic equation can be solved by factoring?
…
 updated one year ago
 34 replies
 1 Medal
Mathematics

lexiamee:
Group Title
Geometry
 updated one year ago
 15 replies
 No Medals Yet
Mathematics

richyw:
Group Title
improper integral. sorry for all of these. my textbook thinks that "converges" is a suitable explanation.
\[\int^{\infty}_0 \tan\frac{1}{…
 updated one year ago
 51 replies
 2 Medals
Mathematics

antoni7:
Group Title
In a bag there are 2 black and 4 white identical rings. Two rings are drawn from the bag at random. Find the probability that only one of th…
 updated one year ago
 6 replies
 2 Medals
Mathematics

LilySwan:
Group Title
The Bride groom by Alexander Pushkin figurative language can you tell?
 updated one year ago
 8 replies
 1 Medal
Mathematics

deena123:
Group Title
How many pairs of integers are there such that \[a^2+6b^2\] and \[b^2+6a^2\] are perfect squares?
 updated one year ago
 15 replies
 2 Medals
Mathematics
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