coding language LATEX

please provide input code

LTEX Exercises 1. Construct the following displays: Please type me! Sphinx of black quartz, judge my vow, (This is not required, but see if you can figure out how to make the modified radical symbol.) L=rp(x+y)n=r=0n(nr)xrynrna12++an2na1++anna1ana11++an1nx,y2x,x(y,y (Try to make the multiplication symbol distinguishable from Icdot like *.) A1:()A2:(())(()())A3:()()