Discuss the process of proving a statement by mathematical induction. What is the importance of verifying the first possible case?

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Using inductive reasoning, what are the next two number in this set? 2,3/2,4/3,5/4,

Tan198=asin164=? how to solve this? ?