The position vector of a point is where and . If , the number of possible position of is

For such questions, we should know different formulas of limit.

For such questions, we should know different formulas of limits. We should try different methods to simplify the function in a way that it doesn't become zero.

For such questions, we should know different formulas of limits.

For such questions, we should know different formulas of limits.

For such questions, we should know different formulas of limits.

For such questions, we should know different formulas of limits. We should know L'Hospitals rule to solve question.

K₁ and K₂ are equilibrium constants for reaction (i) and (ii)
(i) (ii) Then,