ae-at
$$left( {{1 over a}} ight)left( {1 - {e^{ - at}}} ight)$$
a(1 - e-at)
1 - e-at
Answer is Right!
Answer is Wrong!
62. The unilateral Laplace transform of f(t) is $${1 \over {{s^2} + s + 1}}.$$ Which one of the following is the unilateral Laplace transform of g(t) = t.f(t)?
$${{ - s} over {{{left( {{s^2} + s + 1} ight)}^2}}}$$
$${{ - left( {2s + 1} ight)} over {{{left( {{s^2} + s + 1} ight)}^2}}}$$
$${s over {{{left( {{s^2} + s + 1} ight)}^2}}}$$
$${{2s + 1} over {{{left( {{s^2} + s + 1} ight)}^2}}}$$
Answer is Right!
Answer is Wrong!