Questions from General Calculus


Q: Show that the equation has exactly one real root. 2x

Show that the equation has exactly one real root. 2x + cos x = 0

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Q: Show that the equation has exactly one real root. x3

Show that the equation has exactly one real root. x3 + ex = 0

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Q: Show that the equation x3 - 15x + c = 0 has

Show that the equation x3 - 15x + c = 0 has at most one root in the interval [-2, 2].

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Q: Show that the equation x4 + 4x + c = 0 has

Show that the equation x4 + 4x + c = 0 has at most two real roots.

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Q: (a) Show that a polynomial of degree 3 has at

(a) Show that a polynomial of degree 3 has at most three real roots. (b) Show that a polynomial of degree n has at most n real roots.

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Q: (a) Suppose that f is differentiable on R and has

(a) Suppose that f is differentiable on R and has two roots. Show that f ‘ has at least one root. (b) Suppose f is twice differentiable on R and has three roots. Show that f ’’ has at least one real r...

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Q: If f (1) = 10 and f ‘(x)

If f (1) = 10 and f ‘(x) ≥ 2 for 1 ≤ x ≤ 4, how small can f (4) possibly be?

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Q: Suppose that 3 ≤ f ‘(x) ≤ 5 for all

Suppose that 3 ≤ f ‘(x) ≤ 5 for all values of x. Show that 18 ≤ f (8) - f (2) ≤ 30.

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Q: Does there exist a function f such that f (0)

Does there exist a function f such that f (0) = -1, f (2) = 4, and f’ (x) ≤ 2 for all x?

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Q: Find the derivative of the function. Simplify where possible.

Find the derivative of the function. Simplify where possible. y = x sin-1 x + 1− x2

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