Trigonometry, What they'd teach you (if they had the time): How your teachers would like to teach maths.. (What they'd teach you if they had the time Book 2) by Kevin Bennett

Author:Kevin Bennett [Bennett, Kevin]
Language: eng
Format: azw3
Tags: Mathematics
Publisher: K B Tutoring and Training
Published: 2015-09-27T00:00:00+00:00

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Substituting

Divide through by “T” to get

Therefore

COS double angle formula “+”

Now we will look at

Consider the two right angled triangles below. To find the base of the triangle then normal SOHCAHTOA can be used as the base of the triangle is the adjacent, therefore

and can be used

If these are combined, added, and arranged so that the hypotenuse of the bottom triangle is equal to the base of the top triangle

To find the base of the triangle with angle (A+B), the adjacent will be found with

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