Evaluate _ r 1 ;r^2 - Vidyadip

Question

Evaluate $\mathop {\lim }\limits_{r \to 1} \;\pi {r^2}$

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Answer

Here $\mathop {\lim }\limits_{r \to 1} \;\pi {r^2}$ $ = \pi \times {(1)^2} = \pi$

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