Answer:
B x = 3, y= 3
Step-by-step explanation:
Trigonometric ratios
[tex]\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}[/tex]
where:
- [tex]\theta[/tex] is the angle
- O is the side opposite the angle
- A is the side adjacent the angle
- H is the hypotenuse (the side opposite the right angle)
Given:
- [tex]\theta[/tex] = 45°
- O = [tex]x[/tex]
- A = [tex]y[/tex]
- H = [tex]3\sqrt{2}[/tex]
[tex]\implies \sin(45^{\circ})=\dfrac{x}{3\sqrt{2}}[/tex]
[tex]\implies x=3\sqrt{2}\sin(45^{\circ})[/tex]
[tex]\implies x=3\sqrt{2} \cdot \dfrac{\sqrt{2}}{2}[/tex]
[tex]\implies x=\dfrac{3\sqrt{2} \sqrt{2}}{2}[/tex]
[tex]\implies x=\dfrac{3 \cdot 2}{2}=3[/tex]
[tex]\implies \cos(45^{\circ})=\dfrac{y}{3\sqrt{2}}[/tex]
[tex]\implies y=3\sqrt{2}\cos(45^{\circ})[/tex]
[tex]\implies y=3\sqrt{2} \cdot \dfrac{\sqrt{2}}{2}[/tex]
[tex]\implies y=\dfrac{3\sqrt{2} \sqrt{2}}{2}[/tex]
[tex]\implies y=\dfrac{3 \cdot 2}{2}=3[/tex]
