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)![]() ![]() 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( " |