turn off questions



Hi -

I am working on an integration problem and I get asked about four or 
five times if certain expressions are positive/negative/zero.  Normally 
I don't mind this, but in this case I really don't know and Maxima 
doesn't seem to care, because no matter what answers I give I get the 
same result.  Is it possible to turn off the questions somehow?

Thanks,

-Ron