The confrontation of some planet is repeated after 2 years. What is the period of its revolution and the semi-major axis of its orbit?

Two cases are possible. Lower formula 12, T = 2/3 years, formula 15, a = 0.763 a.u. Upper, formula 13, T = 2 years, formula 15, a = 1.587 a.u.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.