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Post New Question
All Questions
+0
230633 Questions
+1
502
1
help
Let a = sin(t) + tan(t) and b = tan(t) - sin(t). Find (a^2 - b^2)^2/(ab).
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Guest
Dec 20, 2019
+1
443
1
help
Let . Find the smallest positive value of such that for some positive integer .
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Guest
Dec 20, 2019
+1
523
1
help
If find .
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Guest
Dec 20, 2019
+1
481
1
help
The number is expressed in the form , where . Find in degrees.
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Guest
Dec 20, 2019
+4
723
1
+41
complex number question
Simplify:
I've tried splitting up the exponents into smaller groups; for example I split 2011 into 2 * 1005 + 1.
But, I'm stuck after this point.
read more ..
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chenxander
Dec 20, 2019
+1
1384
1
+312
CIRCLES II
The second hand on the clock pictured below is 6 cm long. How far in centimeters does the tip of this second hand travel during a period of 30 minutes? Express your answer in terms of pi.
read more ..
NewMember
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mathleteig
Dec 20, 2019
+1
1621
1
The function f(x) is invertible, but the function g(x)=f(kx) is not invertible. Find the sum of all possible values of k.
The function f(x) is invertible, but the function g(x)=f(kx) is not invertible. Find the sum of all possible values of k.
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Guest
Dec 20, 2019
+1
510
1
please help
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Guest
Dec 20, 2019
+1
383
1
help
Given that N > 1 and
find the value of the integer x.
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Guest
Dec 20, 2019
+1
772
1
+143
Inequalities
Given that and find the range of all possible values of
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AoPS.Morrisville
Dec 20, 2019
+1
739
1
+143
Quadratics
Let be real numbers such that
read more ..
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AoPS.Morrisville
Dec 20, 2019
+1
537
1
help
Find the ordered pair of real numbers (x,y) that satsfies x + y + sqrt(x + y) = 12 and x - y + sqrt(x - y) = 6.
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Guest
Dec 20, 2019
+14
1775
4
+232
Tricky Question:
Lance has a regular heptagon (7 sided figure). How many distinct ways can he label the vertices of the heptagon with the letters in OCTAGON if the N cannot be next to an O? Rotations of the same labeling are considered equivalent.
read more ..
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ramenmaster28
Dec 20, 2019
+1
826
1
please help me! :(
Triangles and are congruent, as shown below, where
https://latex.artofproblemsolving.com/c/e/0/ce0bd0c8c119e8879323319f2bd1f3d606500f59.png <-----link to the image (sorry if it's super dark)
(a) Show that
read more ..
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Guest
Dec 20, 2019
+1
612
1
+20
Help!
How many different non-congruent isosceles triangles can be formed by connecting three of the dots in a 4x4 square array of dots?
' '
read more ..
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cantthinkofausername
Dec 20, 2019
+1
417
2
scientific method use it to complete the answer
please help ASAP thank you
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Guest
Dec 20, 2019
+1
367
0
help! 2 questions
Q1
Q2
read more ..
Guest
Dec 20, 2019
+2
587
2
Check answer please? Pre-Calc
This question:
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Guest
Dec 20, 2019
+1
360
1
help
What is the base of the numeral system in which 1/5 = 0.3333 ... (where the digit 3 repeats forever).
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Guest
Dec 20, 2019
Dec 19, 2019
+1
593
1
help
In regular hexagon ABCDEF, the bisector of angle AFB meets AB at G, and H is a point on the bisector of angle BFE such that FH = FG. Find the numerical value of the ratio of the area of triangle FGH to the area of the hexagon.
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Guest
Dec 19, 2019
+1
384
0
Tough question (in my opinion)
Alex writes down a string with four digits. (Since this is a string, not a number, it can start with a 0. For example, Alex could write 0472) Alex then feeds this string into a special counting machine, which counts the number of times the digits
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Guest
Dec 19, 2019
0
707
1
PLEASE HELP FOR HW!!!
he region between the graph of $y = f (x)$ and the $x$-axis, shaded in this figure, has an area of 10 square units. What is the area between the graph of $y = f (x +2)$ and the $x$-axis? PLEASE HELP!!
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Guest
Dec 19, 2019
+1
439
1
help
Find all real numbers x, y, z such that x*y*z^3 = 24, x*y^3*z = 54, and x^3*y*z = 6.
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Guest
Dec 19, 2019
0
477
1
help
If 0 < x < 90 and tan(x)^2 - 4*tan(x) + 1 = 0, find sin(2x).
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Guest
Dec 19, 2019
0
421
1
help appreciated
Let the function g be defined on the complex numbers as g(z) = (a + 2 i)z for some real value of a.
Then if g(z) is equidistant from 0 and z for all z, what is a equal to?
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Guest
Dec 19, 2019
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