Answer:
Option a.) an = -4(-3)^(n-1)
Answer:
It looks different. Can you provide some formulae based on it. I may help you out in the comment section!
If you are given with all the tree sides of the triangle, you may solve for all the angles through the Law of Cosines,
c² = a² + b² - 2ab(cos C)
where angle C is the angle opposite the side c. You may use the same equation to get the values of the remaining angle. Additionally, if you already have one known angle, you can solve for the rest of the angles by Law of Sines,
a / sin A = b / sin B = c / sin C
Answer:
14
Step-by-step explanation:
answer is 14 trust me