ANSWER
-4.0
EXPLANATION
The given trigonometric equation is

From special angles or using the unit circle.


We make the substitution to get:

This simplifies to:

Hence the correct answer is -4.0
<h3>cos2=0and sin=2 it has no solutin or empity set</h3>
Answer:
<em>See below;</em>
Step-by-step explanation:
Consider the steps below;


<em>Thus, we derive such a solution;</em>
<em>m∠ 1 = 35°, m∠ 2 = 145°, m∠ 3 = 35° , m∠ 5 = 35° , m∠ 6 = 145° , m∠ 7 = 35° , m∠ 8 = 145</em>°
Answer:
4 gallons of gasoline per 1 mile
Step-by-step explanation:
I just did this my bad bro