Recent content by new_at_math

how would describe the max/ min for the a constant function,eg. y =5 would you say all points are absolute and local max and mins?

? let me get this right: lets say I have f(x) = x^3 then I can log both sides since f(x) is positive,even though it has values that are both 0 and negative after, log., differentiating I get 3x^2 so I can always use logarithmic differentiation whenever the equation is not equal to zero...

Why does if a function can equal zero, since you can't take the log of zero. EDIT: let me rephrase the question; where can logarithmic differentiation not be used?

I get it now it was a permutation with repetition;my bad.

explain I don't see the logic how is it permuation formula(combination formula ). What is wrong with my method?

Say you roll a dice twice.You want to calculate the probability of getting both dice to land on 3. Using the formula for combinations: the total number of combinations is 21. so is the probability of getting a 3 on both dice 1 /21 ?

Homework Statement so a function was only continuous if and only if lim x ---> a = f(a) but I read some other books saying a functions continuity can only be judged based on their allowed domains. Does that mean the first definition fails if the domains of where the rule fails are...

I just have a general question about limit proof using epsilon delta proofs It generally follows the algorithm from this website:http://www.milefoot.com/math/calculus/limits/DeltaEpsilonProofs03.htm focusing on the first example(example using linear functions) The first table I get, but...