Practice problem
Which of the following is equivalent to the inverse of ts+t\frac{t}{s+t}s+tt?
st+1\frac{s}{t}+1ts+1
s+1t\frac{s+1}{t}ts+1
st+t\frac{s}{t}+tts+t
ts+1\frac{t}{s}+1st+1
Type a concept, like “slope” or “photosynthesis”.