document.write( "Question 1122370: Find the domain and range of y=arccos(e^x) \n" ); document.write( "
Algebra.Com's Answer #738497 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
Find the domain and range of y=arccos(e^x)
\n" ); document.write( "-----
\n" ); document.write( "e^x is always positive.
\n" ); document.write( "e^0 = 1
\n" ); document.write( "Any exponent of e > 0 --> acos(>1) --> not a real number.
\n" ); document.write( "--> upper limit is x=0
\n" ); document.write( "No lower limit, domain is -Inf < x <= 0
\n" ); document.write( "-------------
\n" ); document.write( "acos of e^(negative large numbers) --> pi/2 = range zero to < pi/2
\n" ); document.write( "
\n" );