Step-by-step explanation:
Use a calculator for the first 3 questions:
2. sin (12) = 0.207911691
3. cos (78) = 0.207911691
4. tan (4) = 0.069926812
5. tangent = opposite side / adjacent side
tan (A) = [tex]\frac{a}{b}[/tex]
6. cosine = adjacent side / hypotenuse
cos (A) = [tex]\frac{b}{c}[/tex]
7. sine = opposite side / hypotenuse
sin (A) = [tex]\frac{a}{c}[/tex]
Hope that helps!
