Section 1. Execution Groups: Input/Output

2.* Simplify the square root of 19,220 by entering and executing

sqrt(19220);

Then obtain the complete integer factorization of 19220 by entering and executing

ifactor(19220);

Read ifactor as "integer factors of".

> sqrt(19220);

62*5^(1/2)

> ifactor(19220);

``(2)^2*``(5)*``(31)^2

3.* Obtain an integral of the expression

exp(3*x)*cos(2*x)*sin(4*x) .

Enter it into the int procedure as follows

int( exp(3*x)*cos(2*x)*sin(4*x), x);

> int( exp(3*x)*cos(2*x)*sin(4*x), x);

-1/15*exp(3*x)*cos(6*x)+1/30*exp(3*x)*sin(6*x)+3/13*exp(3*x)*cos(2*x)-9/26*exp(3*x)*sin(2*x)+2/13*exp(3*x)*(3*sin(2*x)-2*cos(2*x))