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/Tag: Trigonometry
2 12, 2018

Radial Survey Go to the Forum to see more questions or ask your own Formulas used in Radial Surveys Sine Rule $\frac{a}{\sin A}=\frac{b}{\sin B}$ $\frac{\sin A}{a}=\frac{\sin B}{b}$ Cos Rule $a^2=b^2+c^2-2bc\cos A$ $\cos A=\frac{b^2+c^2-a^2}{2bc}$ Area Triangle $A=\frac{1}{2}ab\sin C$ Worked examples A compass radial [...]

30 07, 2018

## Algebra & Equations

By |2018-07-30T10:04:48+10:00July 30th, 2018|Tags: , , |Comments Off on Algebra & Equations

Financial Maths Go to the Financial Maths Forum to see more questions or ask your own Topics Covered in Financial Maths Continuous Probability Distributions Normal Distribution Standard Normal Distribution Formulas used in Financial Maths  $y=mx+b$ $m=\frac{rise}{run}$ b = y-intercept [...]

30 07, 2018

## Trigonometry

By |2018-07-30T10:02:33+10:00July 30th, 2018|Tags: , , |Comments Off on Trigonometry

Financial Maths Go to the Financial Maths Forum to see more questions or ask your own Topics Covered in Financial Maths Continuous Probability Distributions Normal Distribution Standard Normal Distribution Formulas used in Financial Maths  $y=mx+b$ $m=\frac{rise}{run}$ b = y-intercept [...]

30 07, 2018

## Further Trig

By |2018-07-30T10:00:46+10:00July 30th, 2018||Comments Off on Further Trig

Financial Maths Go to the Financial Maths Forum to see more questions or ask your own Topics Covered in Financial Maths Continuous Probability Distributions Normal Distribution Standard Normal Distribution Formulas used in Financial Maths  $y=mx+b$ $m=\frac{rise}{run}$ b = y-intercept [...]

6 07, 2018

## Indirect Variation

Indirect Variation Go to the Indirect Variation Forum to see more questions or ask your own Formulas used in Indirect Variation  $y \: \alpha \: \frac{1}{x}$ $y =\frac{k}{x}$ where y varies indirectly with x and k is the constant of variation Worked examples The statement   The [...]

5 07, 2018

## Bearings Non-Right Trig

Bearings Non-Right Trig Go to the Trigonometry Forum to see more questions or ask your own Formulas used in Bearings Non-Right Trig Bearings Non-Right Trig Sine Rule $\frac{a}{\sin\; A}=\frac{b}{\sin\; B}$ $\frac{\sin\; A}{a}=\frac{\sin\; B}{b}$ Cos Rule $a^2=b^2+c^2-2bccos A$ $cos\;A=\frac{b^2+c^2-a^2}{2bc}$ Area Rule $A=\frac{1}{2}ab\sin\;C$ Worked examples A ship sails 40 nautical [...]

5 07, 2018

## Area Triangle

Area Triangle Go to the Trigonometry Forum to see more questions or ask your own Formulas used in Area Triangle $A=\frac{1}{2}ab\sin C$ ensuring that the angle is the included angle Worked examples A parallelogram, has adjacent sides of length 7cm and 5.2 cm and included angle 130°. Calculate its area correct [...]

5 07, 2018

## Cos Rule

Cos Rule Go to the Trigonometry Forum to see more questions or ask your own Formulas used in Cos Rule $a^2=b^2+c^2-2bc\cos A$ looking for a side $\cos A=\frac{b^2+c^2-a^2}{2bc}$ looking for an angle Worked examples Find the value of x, correct to 1 decimal place. x2 = 82 [...]

5 07, 2018

## Sine Rule

Sine Rule Go to the Trigonometry Forum to see more questions or ask your own Formulas used in Sine Rule Sine Rule $\frac{a}{sin\;A}=\frac{b}{sin\;B}$ looking for a side $\frac{sin\;A}{a}=\frac{sin\;B}{b}$ looking for an angle Worked examples A tower is observed from 2 points A and B which are 240 [...]
Bearings Right Trig Go to the Trigonometry Forum to see more questions or ask your own Formulas used in Bearings Right Trig Bearings Right Trig SOH CAH TOA   $\sin\theta=\frac{opp}{hyp}$ $\cos\theta=\frac{adj}{hyp}$ $\tan\theta=\frac{opp}{adj}$ Worked examples  The bearing of town A from O is N65°W and the bearing of [...]