- On what interval is the graph of f(x)=(1-1/x)^2 concave downward?

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W^44 + w^45 = ? Options : A)-1 B)-1/w C) 1/(-w^2) or none.
I know that w^3 = 1 the answer is c...how? List of temperature in Memphis, Tennessee summer 1980? How many atoms are in 7.10 mol of copper (II) phosphate? What is [1/cos(x)-sin(x) times tan(x)]/cosĀ²(x)? If the fifth term of a geometric sequence is 81 and the common ratio is 3/4, find the sum of the first 20 terms?