(a) (b) (c) (d) y hi -2+ 65. f(x) = |x cos x| 67. g(x) = |x| sin x 66. f(x) = x sin x 68. g(x) = |x| cos x 2. 2.

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Limits

When it comes to calculus, limits are considered to be a very important topic of discussion. The main importance of limit lies in expressing the value of a function as it gets closer to a certain value. Also, limits can help you to understand other topics, such as continuity and differentiability better. In a broader sense, every calculus notion is a limit. Other branches of calculus have also been derived from limits.