General Math Forum

Join in expert discussion on general math topics that are not applicable to the specific categories. This includes topics are usually high school math level. Homework help is available.

Threads

How Do Shadows and Sun Angles Relate to Tree Height?

  • xyz_1965
  • · Replies 4 ·
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4

Finding the Leg Lengths of a Right Triangle with an Acute Angle of 22°

  • xyz_1965
  • · Replies 2 ·
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2

How Tall are Buildings A and B Using Trigonometry?

  • xyz_1965
  • · Replies 2 ·
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2

Stoichiometry problem

  • WMDhamnekar
  • · Replies 1 ·
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1

Find All Possible Values of $AD$ in Cyclic Quadrilateral

  • anemone
  • · Replies 1 ·
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1

What is the solution to this trigonometric challenge?

  • anemone
  • · Replies 1 ·
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1

How many oranges were there in the morning?

  • anemone
  • · Replies 8 ·
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8

What Is a Common Denominator for These Fractions?

  • Khadeeja
  • · Replies 2 ·
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2

Undergrad Real life traveling salesman problem

  • beamthegreat
  • · Replies 6 ·
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6

Can You Prove 2+2√(28n²+1) is a Square Number?

  • anemone
  • · Replies 2 ·
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2

Natural number solutions for positive variable ordering constraints

  • Hatuk
  • · Replies 2 ·
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2

High School Four Digit Numbers from 2x2 Digits - Simple Math Puzzle

  • bob012345
  • · Replies 20 ·
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20

Undergrad Are there any two pairs of integers with the same result in a specific function?

  • {???}
  • · Replies 7 ·
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7

Expressing numbers as outputs of functions for data compression

  • DaviFN
  • · Replies 1 ·
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1

High School Find triangles with areas that are integers

  • Mikestone
  • · Replies 20 ·
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20

Prove 1001×1001 symmetric table has all numbers on diagonal

  • WJMeyer
  • · Replies 1 ·
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1

Inequality involving a, b, c and d

  • anemone
  • · Replies 1 ·
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1

High School Twin brother's speed to the moon based on time dilation

  • EqualsMC2
  • · Replies 3 ·
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3

Geometry problems from Cambridge book without solutions

  • boujeemath
  • · Replies 3 ·
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3

Solve System of 4 Equalities: x+y+z+w=22, xyzw=648

  • solakis1
  • · Replies 6 ·
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6

How can you prove abc <= 1/8 knowing 1/a + 1/b + 1/c >= 6?

  • moonoem
  • · Replies 8 ·
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8

Can You Solve the Triangle Sides Challenge?

  • anemone
  • · Replies 2 ·
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2

Find the square of the distance

  • anemone
  • · Replies 1 ·
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1

Finding $f(84)$ with the Defined Function $f$

  • anemone
  • · Replies 4 ·
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4

Solve for $d-b$: $a^5=b^4,\,c^3=d^2,\,c-a=19$

  • anemone
  • · Replies 1 ·
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1

How should you draw this sketch?

  • WJMeyer
  • · Replies 1 ·
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1

Largest Even Integer: Impossible Sum of Two Odd Composites

  • anemone
  • · Replies 2 ·
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2

Finding $|k|$ of the Polynomial $x^3-kx+25$

  • anemone
  • · Replies 4 ·
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4

Graduate Jacobi Elliptic Functions and Integrals

  • bamajon1974
  • · Replies 3 ·
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3

How to organize nuts, screws and bolts

  • Yamaa Naser
  • · Replies 2 ·
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2

What does the following means?

  • cbarker1
  • · Replies 2 ·
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2

Expressing First 1000 Positive Integers as Floor Functions

  • anemone
  • · Replies 3 ·
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3

Who are the Top Math/Physics Content Creators on YouTube and Beyond?

  • etotheipi
  • · Replies 9 ·
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9
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1

Prove ABC is an equilateral triangle

  • anemone
  • · Replies 1 ·
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1
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1

Undergrad What does a·a′ = aa′ mean in Bate's Fundamentals of Astrodynamics?

  • dimitri151
  • · Replies 20 ·
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20

How to Solve an Equation with Square Roots?

  • magda21
  • · Replies 5 ·
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5

Solving Integer Equations with $a$ and $b$

  • anemone
  • · Replies 4 ·
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4

High School Possible factor(s) of 2^(12n+9)+1

  • Janosh89
  • · Replies 4 ·
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4

Undergrad Finding multinomial coefficients by evaluation?

  • Stephen Tashi
  • · Replies 13 ·
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13

Undergrad Product of distances from foci to any tangent of an ellipse

  • ElectronicTeaCup
  • · Replies 2 ·
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2

Is 7 an irrational number in the set of integers?

  • nycfunction
  • · Replies 5 ·
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5

Find the area of the red region

  • anemone
  • · Replies 2 ·
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2

Find (x₁²+1)(x₂²+1)(x₃²+1)(x₄²+1)

  • anemone
  • · Replies 2 ·
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2

Find AC in parallelogram ABCD given PB=700 and PD=821

  • anemone
  • · Replies 1 ·
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1

Max Value of $b$ for Real Roots of $f(x)$ and $g(x)$

  • anemone
  • · Replies 2 ·
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2

Equation of the form x+a=√(bx+c)

  • jennyyyyyy
  • · Replies 7 ·
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7

Undergrad Does this make a cubic out of a quadratic system?

  • jk22
  • · Replies 9 ·
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9

Polynomial Challenge: Show Real Roots >1 Exist

  • anemone
  • · Replies 1 ·
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1

Solve x²-y√xy=126, y²-x√xy=-63 and a symmetric fraction equation

  • solakis1
  • · Replies 2 ·
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2
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3
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10

Lengths of the sides of quadrilateral

  • anemone
  • · Replies 1 ·
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1

Area of shaded region with two circles and tangent chord

  • anemone
  • · Replies 2 ·
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2

High School Why Do We Draw Dimensionless Unit Vectors in Diagrams?

  • etotheipi
  • · Replies 16 ·
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16

Prove $\frac{1}{3}\le \frac{u}{v} \le \frac{1}{2}$ with Triangle Sides

  • anemone
  • · Replies 4 ·
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4

Solve System of Inequalities: 2x+3y-4, 3x-4y+5

  • solakis1
  • · Replies 8 ·
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8

Solve System of Equalities: x^2+xy+y^2, x^2+xz+z^2, y^2+yz+z^2

  • solakis1
  • · Replies 7 ·
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7

Is $f(x) = xf(1)$ the only solution to the given functional equation?

  • caffeinemachine
  • · Replies 3 ·
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3

System of Equations: Find Triples $(x,y,z)$

  • anemone
  • · Replies 1 ·
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1

High School Why do shapes with the same area have different perimeters?

  • SSG-E
  • · Replies 21 ·
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21

Undergrad Who would win a perfect game of chess?

  • ScientificMind
  • · Replies 195 ·
7
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195

What are the angles of an isosceles triangle with a specific ratio?

  • anemone
  • · Replies 2 ·
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2

High School Does it make sense to say that something is almost infinite?

  • SSG-E
  • · Replies 7 ·
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7

High School Looking for examples of unexpected applications of math concepts

  • Tiger Blood
  • · Replies 15 ·
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15

High School Area of a Circle in an Electron's Hydrogen Atom

  • Anthill
  • · Replies 1 ·
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1

Undergrad Simple, almost "intuitive" conjecture, hard or impossible to solve?

  • fluidistic
  • · Replies 5 ·
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5

Can You Prove This Inequality Challenge?

  • Opalg
  • · Replies 2 ·
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2

Find the amount of sand in each bag

  • anemone
  • · Replies 1 ·
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1

Finding $b(a+c)$ for Real Roots of $\sqrt{2014}x^3-4029x^2+2=0$

  • anemone
  • · Replies 1 ·
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1

Find the diameter of one circle

  • anemone
  • · Replies 3 ·
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3

Undergrad What is meant by "convergent just preceding ##\frac{a}{b}##" ?

  • Adesh
  • · Replies 2 ·
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2

Undergrad Area of a cylinder enclosing an ellipsoid

  • Mikestone
  • · Replies 12 ·
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12

Undergrad Find Angles in Right Angle Triangles

  • Sameh soliman
  • · Replies 4 ·
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4

Find the total number of red and blue beads

  • anemone
  • · Replies 5 ·
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5

How does temperature affect the length of a steel measuring tape?

  • Joe_1234
  • · Replies 1 ·
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1

Inequality Challenge: Prove $x$ for $x>0$

  • anemone
  • · Replies 1 ·
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1
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2

Prove $\pi^e > 5^{1.9}$ Without Calculator

  • anemone
  • · Replies 2 ·
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2

Five trigonometric questions on cycles, periods and sinusoidal functions

  • Sabrina102
  • · Replies 1 ·
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1

Exponential functions (calculator exercise)

  • Joshuaniktas
  • · Replies 1 ·
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1

Are Critical Points and Roots Interchangeable in Math?

  • gevni
  • · Replies 3 ·
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3

Evaluate the constant in polynomial function

  • anemone
  • · Replies 7 ·
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7

Can You Solve This Tricky Trigonometric Floor Function Equation?

  • anemone
  • · Replies 4 ·
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4

Find the last digit of a series

  • anemone
  • · Replies 2 ·
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2

Engineering Mechanics: car speeding up

  • Joe_1234
  • · Replies 2 ·
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2

Engineering Mechanics: depth of crater

  • Joe_1234
  • · Replies 1 ·
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1

Algebra word problem solve for x

  • Kiwiman
  • · Replies 4 ·
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4

Factorials and Exponent Challenge

  • anemone
  • · Replies 2 ·
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2

Factorize 6(x^5+y^5+z^5)-5(x^2+y^2+z^2)(x^3+y^3+z^3)

  • anemone
  • · Replies 1 ·
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1

Undergrad Hamilton path and circuit rounded path problem

  • requied
  • · Replies 10 ·
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10

Man on ladder wishes to avoid the ladder slipping

  • Joe_1234
  • · Replies 5 ·
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5

Undergrad Controlling motor rotation with dynamic endpoint updates

  • assafMOCAP
  • · Replies 3 ·
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3

Solving a Third-Degree Polynomial with Real Coefficients

  • anemone
  • · Replies 1 ·
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1

Proving Equality of Angles in an Acute Triangle

  • anemone
  • · Replies 4 ·
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4

High School What Are the Sign Rules for Second Degree Functions?

  • help
  • · Replies 6 ·
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6

Find Final Diameter of 30m Aluminum Bar (172MPa)

  • Joe_1234
  • · Replies 1 ·
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1
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2

Find real solutions to a system

  • anemone
  • · Replies 6 ·
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6