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Solution 4.2:2a

From Förberedande kurs i matematik 1

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The opposite and adjacent are given in the right-angled triangle and this means that the value of the tangent for the angle can be determined as the quotient between the opposite and the adjacent:

tanv=25 Image:4_2_2_a.gif

At the same time, this is a trigonometric equation for the angle v.


Note: In the chapter on "Trigonometric equations", we will investigate more closely how to solve equations of this type.

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