Evaluate the Improper Integral or State That It Is Divergent $$\int _ { 0 } ^ { \infty } 21 e ^ { - 21 x } d x$$

question 88

Multiple Choice

Evaluate the improper integral or state that it is divergent.
- $$\int _ { 0 } ^ { \infty } 21 e ^ { - 21 x } d x$$

• A) Divergent
• B) 1
• C) 0
• D) -1

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