Question 1138645


{{{lim(x ->pi/2, (3e^x*cos(x)))}}}..........plug in the value :{{{x= pi/2}}} 

={{{(3e^(pi/2)*cos(pi/2)))}}}...........{{{cos(pi/2)=0}}}
={{{3e^(pi/2)*0)}}}
={{{0}}}

answer: {{{lim(x ->pi/2, (3e^x*cos(x)))=0}}}