All Questions

640

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

575

help

Let . Find the smallest positive value of such that for some positive integer .

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Guest Dec 20, 2019

661

help

If find .

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Guest Dec 20, 2019

615

help

The number is expressed in the form , where . Find in degrees.

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Guest Dec 20, 2019

856

+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

1492

+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 ●

mathleteig Dec 20, 2019

1718

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

651

please help

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Guest Dec 20, 2019

520

help

Given that N > 1 and
find the value of the integer x.

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Guest Dec 20, 2019

885

+158

Inequalities

Given that and find the range of all possible values of
read more ..

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AoPS.Morrisville Dec 20, 2019

858

+158

Quadratics

Let be real numbers such that
read more ..

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AoPS.Morrisville Dec 20, 2019

673

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

1899

+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

972

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

746

+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

557

scientific method use it to complete the answer

please help ASAP thank you

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Guest Dec 20, 2019

483

help! 2 questions

Q1

Q2 read more ..

Guest Dec 20, 2019

731

Check answer please? Pre-Calc

This question:

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Guest Dec 20, 2019

497

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

741

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

502

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 read more ..

Guest Dec 19, 2019

846

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

567

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

607

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

556

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

All Questions ⁺⁰238362 Questions

help

help

help

help

complex number question

CIRCLES II

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.

please help

help

Inequalities

Quadratics

help

Tricky Question:

please help me! :(

Help!

scientific method use it to complete the answer

help! 2 questions

Check answer please? Pre-Calc

help

help

Tough question (in my opinion)

PLEASE HELP FOR HW!!!

help

help

help appreciated

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