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

Trigonometry - bearings - Radial surveys.
Test Yourself 1 - Solutions.

• Algebra & Number
  • Main Algebra page
  • Equations
    • Blood alcohol (BAC)
  • Factorisation
  • Indices
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  • Absolute values
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• Calculus
  • Differentiation
    • Main page
    • Max-min questions
    • Implicit differentiation
  • Integration
    • Main page
    • Approximation methods
    • Areas
    • Volumes
    • Reverse Chain Rule
  • Applics to physical world
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• Financial Maths
  • Main Finance page
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• Functions & Quadratics
  • Main page
  • Characteristics
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  • Linear fns
  • Quadratics
  • Exponential
    • Main page
  • Hyperbola
  • Logarithmic
    • Main page
  • Trigonometric
    • Main page
  • Parametric
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    • Inverse fns
    • Inverse trig fns.
• Geometry
  • Parallel lines
  • Triangles
    • Types
    • Congruence
    • Similarity
  • Pythagoras' Theorem
  • Quadrilaterals
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    • Arc length, sectors etc
• Measurement
  • Errors of measurement
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• Networks & Graphs
• Probability & Statistics
  • Probability main page
  • Data presentation
  • Descriptive statistics
    • Main page
    • Calculator use
  • Probability distributions
  • Normal distribution
  • Binomial distribution
• Trigonometry
  • Measuring angles
    • Main page
  • Equations & identities
  • Graphing trig functions
  • Calculus and trig functions
  • Inverse trig fns
• Maths & beyond
  • Bibliography
  • Maths humour
• Index

 

	4. (i) (ii) (iii)
	7.