Stingers

Math Stinger #146
Two functions of x are differentiable and not identically equal to zero.  FInd an example of two such functions having the property that the derivative of their quotient is the quotient of their derivatives.
Please send solutions to shollid4 at kennesaw dot edu.

Math Stinger #145
What is the number of k-tuples chosen from 1,..., n containing no two consecutive integers?
Please send solutions to shollid4 at kennesaw dot edu.


Math Stinger #144
What is the distance between the two poles?

Catenary distance between poles
Note: The above picture is certainly not to scale.
Please send solutions to shollid4 at kennesaw dot edu.

©