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:  | 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:  | ||
| + | {| width="100%"  | ||
| + | | width="50%" align="center"|<math>\tan v = 2/5</math>  | ||
| + | | width="50%" align="left"|[[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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Current revision
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:
| \displaystyle \tan v = 2/5 |  
 | 
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.

