Multiple choice

If L defines the Laplace Transform of a function, L [sin (at)] will be equal to

  1. $\alpha / (s^2 - a^2)$
  2. $\alpha / (s^2 + a^2)$
  3. $s / (s^2 + a^2)$
  4. $s / (s^2 - a^2)$
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B Correct answer
Explanation

The Laplace transform of sin(at) is defined by the integral of e^(-st) * sin(at) from 0 to infinity. This standard transform pair is a / (s^2 + a^2).

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