There is nothing in legislation that I can find that says they cannot. In the past I have seen some instances where a member has asserted that they are prepared to accept minutes as true and accurate record because they trust there fellow members. More recently with more meetings recorded I have seen some have vote to approve based on the recording when not physically present.
My personal choice would be to abstain if had not seen (electronically) or actually physically participated in proceedings (stating reason for abstention prior to vote to make it clear to any member of the public watching).