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Concept · 13 of 15

Limits

The doorway to calculus.

    01

    lim x→3 (x² − 9)/(x − 3) = ?

    02

    lim x→0 (1 − cos x)/x² = ?

    03

    lim x→∞ (3x² + 2)/(x² − 5) = ?

    04

    Is f(x) = |x|/x continuous at 0?

    05

    lim x→0⁺ ln(x) = ?