What is the inverse Laplace transform of -LSB- math -RSB- \ frac -LCB- e ^ -LCB- -LRB- - \ tau -RRB- -RCB- -RCB- -LCB- s -LRB- s ^ 2 + s-2 -RRB- -RCB- -LSB- / math -RSB- ?
What is the inverse Laplace transform of -LSB- math -RSB- \ frac -LCB- -LRB- s +1 -RRB- e ^ -LCB- -LRB- - \ tau -RRB- -RCB- -RCB- -LCB- -LRB- s ^ 2 + s-2 -RRB- -LRB- s +1 -RRB- -RCB- -LSB- / math -RSB- ?