Callisto
 Name:

 School:
 About:
 春有百花秋有月 夏有涼風冬有雪
若無閒事掛心頭 便是人間好時節

0 
Questions Answered

ParthKohli:
Group Title
Nice problem with a nice solution.
 updated 4 days ago
 37 replies
 5 Medals
Mathematics

wr:
Group Title
okay this is starting to piss me off right now! my friend and I have been trying to sign up in here for an hour now! what's happening is tha…
 updated 4 days ago
 12 replies
 1 Medal
Mathematics

wr:
Group Title
HELP!
I told my friend about OS and he wanted to sign up.
when he filled out everything it says something like "it appears that your IP ad…
 updated 3 days ago
 11 replies
 No Medals Yet
Mathematics

niccco_:
Group Title
How can you permanently delete a question? I accidentally posted a math question under History and I closed it, but that doesn't really dele…
 updated 4 days ago
 15 replies
 9 Medals
Mathematics

ParthKohli:
Group Title
How do we not have a law group yet?!
 updated 20 hours ago
 19 replies
 3 Medals
Mathematics

eric_d:
Group Title
Differentiate following with respect to x
a) ln ( x^2 + 1 )
 updated 4 days ago
 19 replies
 3 Medals
Mathematics

eric_d:
Group Title
By using differentiation of product rule, find dy/dx of y=x cos x
 updated 4 days ago
 42 replies
 2 Medals
Mathematics

**CREEPYMLPMASTER**:
Group Title
Can you guys please make Open Study compatible with Internet Explorer 11? I know it works with IE 9 but that is really outdated when you try…
 updated 4 days ago
 11 replies
 7 Medals
Mathematics

kryton1212:
Group Title
Let m1, r1 and v1 be the mean, the range and the variance of a group of numbers {x1,x2,x3...,x100} respectively. If m2, r2 and v2 are the me…
 updated 9 days ago
 25 replies
 1 Medal
Mathematics

kryton1212:
Group Title
Find the range of values of k such that the circle \(x ^{2}+y ^{2}+2x4y13=0\) and the straight line xy+k=0 intersect at two distinct poin…
 updated 9 days ago
 17 replies
 1 Medal
Mathematics

kryton1212:
Group Title
The figure shows a regular tetrahedron ABCD. Find the angle between the plane ABC and the plane BCD correct to the nearest degree.
 updated 9 days ago
 38 replies
 2 Medals
Mathematics

kryton1212:
Group Title
In the figure, ABCD is a rectangle. CDE is a straight line and AE//BD. If the area of ABCD is 24 and F is a point on BC such that BF:FC=3:1,…
 updated 10 days ago
 21 replies
 2 Medals
Mathematics

oregon23:
Group Title
HELP!!!!!1 I WILL MEADEL ADFANPEASE HELP @hartnn @Hero @iGreen PLEASE HELP @Directrix AD PLEASE HELP @Compassionate @Callisto!!!
write 2,50…
 updated 10 days ago
 20 replies
 2 Medals
Mathematics

mhayden:
Group Title
(1+sinx)/cosx=cosx/(1sinx)
 updated 10 days ago
 7 replies
 1 Medal
Mathematics

kryton1212:
Group Title
In the figure, ABDF and ACEG are straight lines. If the area of triangle ABC is 16 cm2 and the area of quadrilateral BDEC is 20 cm2, then th…
 updated 10 days ago
 39 replies
 2 Medals
Mathematics

kryton1212:
Group Title
In the figure, ABCD is a parallelogram. E and F are points on AD and BC resepctively such that AB//EF. EP meets AC at G. If AG:GC=1:2, then …
 updated 10 days ago
 23 replies
 3 Medals
Mathematics

kryton1212:
Group Title
In the figure, the paper cup in the form of a circular cone contains 10 ml of water. How many ml of water must be added to fill up the paper…
 updated 11 days ago
 15 replies
 1 Medal
Mathematics

zmorron14:
Group Title
A car is moving at a constant speed along a straight line. Which statement is true about the forces acting on the car?
 updated 11 days ago
 4 replies
 No Medals Yet
Mathematics

kryton1212:
Group Title
In the figure, a right pyramid with a square base is divided into three parts A,B and C by two planes parallel to the base such that the len…
 updated 11 days ago
 32 replies
 3 Medals
Mathematics

3p0huggedout:
Group Title
im bored out my mind
class feels stupid today
…
 updated 11 days ago
 2 replies
 1 Medal
Mathematics

kryton1212:
Group Title
The figure shows a right circular cylinder with AC being a diameter of its upper face. AB and CD are two vertical lines on the curved surfac…
 updated 11 days ago
 41 replies
 2 Medals
Mathematics

Marki:
Group Title
i have noticed that most of OS mods are males , and there is only 3 are females (idk if there is more :P ) so how that could be even possi…
 updated 7 days ago
 96 replies
 13 Medals
Mathematics

RAINIAR:
Group Title
any 9th grade conexus users?
…
 updated 18 days ago
 1 reply
 No Medals Yet
Mathematics

Marmar10:
Group Title
help!
prove cos^2 x/1sinx=1+sinx
 updated 18 days ago
 7 replies
 2 Medals
Mathematics

manyo:
Group Title
Prove identity:
Sec^6xtan^6x= 1+3tan^2xsec^2x
 updated 24 days ago
 1 reply
 No Medals Yet
Mathematics

jmfregeau:
Group Title
State the degree of the polynomial. Xy^3+3x^2y7
 updated 24 days ago
 1 reply
 No Medals Yet
Mathematics

takitkal_turtl3:
Group Title
the school sells two kinds of wraps: vegetarian and chicken. The vegetarian wrap costs $1.00 and the chicken wrap costs $1.80. Today they ma…
 updated 24 days ago
 1 reply
 No Medals Yet
Mathematics

mayankdevnani:
Group Title
So CONFUSING FOR ME ???
…
 updated 24 days ago
 56 replies
 2 Medals
Mathematics

Edidiong:
Group Title
5x^3x^2125x+25=0
 updated 24 days ago
 6 replies
 1 Medal
Mathematics

manyo:
Group Title
Prove this identity, please with steps:
sin5x=sinx(cos^2 2xsin^2 2x) + 2cosxcos2xsin2x
 updated 24 days ago
 10 replies
 1 Medal
Mathematics
 > Older questions