Mathematics (College) quiz

106 questions across 1 difficulty level. Every attempt draws a fresh random set, so you can play as often as you like.

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How many positive numbers x satisfy the equation cos(97x) = x?
Which of the following are valid intervals of convergence for a power series? (I) [−1, 3) (II) (−∞, 0] (III) [2, 2] ∪ [3, 3] (IV) (−∞,∞)
Let f(x,y) = x^2 - 2xy + y^3 for all real x and y. Which of the following is true?

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