Of course you can use the quotient rule, but it is usually not the easiest method. If we do use it here, we get $${d\over dx}{10\over x^2}={x^2\cdot 0-10\cdot 2x\over x^4}= {-20\over x^3},$$ since the derivative of 10 is 0.
1 Young children can't tell the difference between fantasy and reality. 2  Your preschooler's rich imagination is a big part of his normal development, but that means it is usually hard for him to tell the difference between what's real and what's imaginary.
Difference Between Dream and Imagination. âDreamâ and âimaginationâ are words very close to each other but still have a few distinctions. Both âdreamâ and âimaginationâ refer to mental processes, states and products of a personâs mind. Both are also experiential. The two states are also not based or influenced by reality.