Question
Geoduom dann
Ask by Frank Matthews. in Senegal
Jan 21,2025
Upstudy AI Solution
Tutor-Verified Answer
Answer
Les solutions de l’équation
sont
,
,
, et
.
Solution
Pour résoudre l’équation suivante :
Étapes de résolution :
-
Isoler la valeur absolue :
-
Résoudre pour
: Cela implique deux cas : -
-
Trouver les angles correspondants dans l’intervalle
: -
Pour
: -
Pour
:
-
Solutions complètes :
Ces angles sont les solutions de l’équation
dans l’intervalle donné.
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Extra Insights
Ooh, let’s dive into solving the equation
. First, divide both sides by 2 to get
. Now, we know that the cosine function is positive in the first and fourth quadrants, so we can have two cases:
-
which gives us principal values for any integer . -
giving us solutions and .
Now we can find the angles relative to
!
For real-world application, understanding cosines and their properties is crucial, especially in physics and engineering. They help in analyzing waves, light, and even electrical circuits!
Moreover, trigonometry plays a pivotal role in computer graphics. When creating 3D models or animations, cosine functions help determine angles and positions, allowing for smooth and realistic movements. Keep those angles in mind; they’re more important than you think!