jeanlouie
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 Vu Tuan Anh
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 Hung Vuong gifted school
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jeanlouie:
Please help!
A Double Tower of Hanoi contains 2n disks of n different sizes, two of each size. We're required to move only one disk at a t…
 updated one year ago
 19 replies
 2 Medals
Mathematics

jeanlouie:
Please help!
A Double Tower of Hanoi contains 2n disks of n different sizes, two of each size. We're required to move only one disk at a tim…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

jeanlouie:
for every n>1, there is always a prime p: p < n < 2p.
Is that true?
 updated one year ago
 20 replies
 3 Medals
Mathematics

tanjung:
Given set A = {1,2,3,4,...,4022}
If subset of A consists of k elements which satisfy there are 2 prime numbers each other, so the possible …
 updated one year ago
 36 replies
 2 Medals
Mathematics

Rubie:
In order to qualify for a girls' regional 1500 meter race, an athlete's personal best time for the season must be under the qualifying time …
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

UnkleRhaukus:
*Problem 1.9
\[\Psi(x,t) = Ae^{ a\left[\frac{mx^{2}}{\hbar}+it\right]}\]
 updated one year ago
 9 replies
 2 Medals
Mathematics

nthsyaa:
help me to solve this:
which numbers between : 20000002, 20011002, 20022002, 200330022 that divisible by 9?
…
 updated one year ago
 9 replies
 2 Medals
Mathematics

UnkleRhaukus:
Calculate the expectation value of x squared
\[\langle x^2\rangle \]…
 updated one year ago
 29 replies
 No Medals Yet
Mathematics

mominanisar:
slope of line through points (x,y) and (7;11) is 0 then line is
a.parallel to x axis b.parallel to y axis c.perpendicular to x axis
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

Faye281:
solve for x
 updated one year ago
 22 replies
 2 Medals
Mathematics

Rubie:
When three times the opposite of a number is subtracted from the number itself,
the difference is six.
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

Rubie:
If x is an integer, then the next two consecutive integers are ? and ?
 updated one year ago
 14 replies
 No Medals Yet
Mathematics

higgs:
A quadrilateral with sides 15, 15, 15 and 20 is drawn with each vertex on a circle. Around this circle a square is drawn, with each side tan…
 updated one year ago
 28 replies
 2 Medals
Mathematics

Emraa:
I Really need help please ?
 updated one year ago
 6 replies
 1 Medal
Mathematics

hamish93:
Help !
…
 updated one year ago
 10 replies
 2 Medals
Mathematics

Ted.knows.it:
Prove that: (image attached)
…
 updated one year ago
 15 replies
 3 Medals
Mathematics

AidanNims:
Help me please i need this to be done for the assignment due tomorrow and i cant do it :(
conic section with polar equation:
…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

aliza_k:
show that integral (ln (sin(x))=piln(2) from 0..pi.
…
 updated one year ago
 28 replies
 5 Medals
Mathematics

Snowflake123:
A bag contains 7 orange balls and 3 blue balls, 4 balls are selected at random from the bag,
without replacement. Let X denote the number…
 updated one year ago
 1 reply
 1 Medal
Mathematics

WhiteFlower:
1 1/3 x 5 5/8=__?
 updated one year ago
 11 replies
 No Medals Yet
Mathematics

vikrantg4:
Inequality Plz :S
 updated one year ago
 9 replies
 No Medals Yet
Mathematics

A.Avinash_Goutham:
there are three ants on the corners of a triangle nd they start moving randomly towards one another.......wat's the probability that they do…
 updated one year ago
 14 replies
 2 Medals
Mathematics

Lulu212:
Solve sin2x + 4sin x + 3 = 0
 updated one year ago
 60 replies
 3 Medals
Mathematics

Rainbow_Dash:
Solve 27^2/3. I know how to this but i completely forgot and a simple explanation would help.
 updated one year ago
 3 replies
 1 Medal
Mathematics

Lulu212:
HELPPP!!!
Find the sum of the even numbers from 1 to 200 inclusive.
 updated one year ago
 10 replies
 1 Medal
Mathematics

tiffanymak1996:
is this absolutely convergent or conditionally or divergent?
 updated one year ago
 62 replies
 1 Medal
Mathematics

primeavlqueen22:
Referring to the figure, evaluate the expression shown
when a = 3, b = 7, c = 2http://www.ppstest2.com/images2/AL9003.jpg
 updated one year ago
 28 replies
 2 Medals
Mathematics

britirish123:
how do i find sin^1(cos(pi)) and answer in radians in terms of pi
 updated one year ago
 12 replies
 No Medals Yet
Mathematics

blackrose636:
Please help to solve 2X^35X^246X+24=0
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

Steeben:
Geometry Circle question!
 updated one year ago
 52 replies
 3 Medals
Mathematics
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