Dr. J's Maths.com
Where the techniques of Maths
are explained in simple terms.

Trigonometry - solving basic equations.
Test Yourself 1 - Solutions.

• Algebra & Number
  • Equations
    • Simultaneous
    • Blood alcohol (BAC)
  • Factorisation
    • Overview
    • Cross Method
    • Completing the Square
    • Cubics
  • Indices & Powers
  • Inequalities
• Calculus
  • Main page
  • Differentiation
    • Main page
    • Implicit differentiation
  • Integration
    • Main page
    • Reverse Chain Rule
    • Areas
    • Volumes
    • Approximation methods
  • Applics to physical world
• Financial Maths
  • Main Finance page
  • Earning money & Tax
  • Investment & Loans
  • Series
• Functions & Quadratics
  • Characteristics
  • Quadratics
  • Exponential
    • Main page
  • Logarithmic
    • Main page
  • Trigonometric
    • Main page
  • Inverse functions
    • Inverse fns
    • Inverse trig fns.
  • Parametric
• Geometry
  • Triangles
    • Types
    • Congruence
    • Similarity
  • Quadrilaterals
  • Parallel lines
  • Circles
    • Arc length, sectors etc
• Measurement
  • Time
    • UTC, GMT & IDL
  • Errors of measurement
• Networks & Graphs
• Probability & Statistics
  • Probability
  • Normal distribution
  • Binomial distribution
• Trigonometry
  • Basic relations (non-calculus)
  • Trig functions
    • Main page
    • Radians
    • Circle bits
    • Graphing
    • Calculus main page
  • Graphing trig functions
  • Inverse trig fns
• Maths & beyond
  • Bibliography
  • Maths humour
• Index

 

 

 

Trig ratio and a number
Squared trig ratio and a number
A sin and cos term but no number
Trig ratios in quadratic format.