MTH3: FORMULAE

This unit dwells on formalae,which is frequently expressed in algebraic symbols, its also about substitution, and functions.

FORMULAE

Building a formulae

Example

  1. In the figure , ABC is a straight line the angles at B are p0 , q0, q0 as shown statethe fomular for p in terms of q.

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  1. Trees are planted in a rectangular field measures 2 metres by metres. Each tree is allowed to occupy an area of 15m2. If there n trees. Complete the fomulae n= —-

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The answer isunrealistic because you can’t have a fraction of trees

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A VIDEO ABOUT FORMALAE INVOLVING FRACTIONS

Surface area, 5cm2 in erms of h

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  1. In the figure the square ABCD has sides of length 10cm and CX = CV = Xcm.

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A VIDEO ABOUT FORMALAES

SUBSTITUTION

  1. A metal bar has a length , a cm when its temperature is raised f 0C its new length , at cm is given by at where c is the coefficient of linear expansion. Find C if a = 87.40

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A VIDEO ABOUT FORMULAE AND SUBSTITUTION

FUNCTIONS

A function is a mapping in which every object has one and only one image.

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Notation;-

Example

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ASSIGNMENT : FORMULAE ASSIGNMENT MARKS : 10  DURATION : 30 minutes

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