Смена функции

(function() {
    'use strict';
    NAinfo.requireApiVersion(0, 0);




    let znach=[`\\sin`,`\\cos`,/*`\\tg`,`\\ctg`*/].iz();
    let ugol = om.latbukv.iz();
    let k =0;//sluchch(0, 100);
    let graniz = [
        [`(${k.texfracpi(1)};${(k+0.5).texfracpi(1)})`, 1, 1, `I`],
        [`(${(k+0.5).texfracpi(1)};${(k+1).texfracpi(1)})`, -1, 2, `II`],
        [`(${(k+1).texfracpi(1)};${(k+1.5).texfracpi(1)})`, 1, 3, `III`],
        [`(${(k+1.5).texfracpi(1)};${(k+2).texfracpi(1)})`, -1, 4, `VI`],
    ].iz();
    let ugol1=`${(sluchch(1,5,2)/2).texfracpi(1)}`;

    NAtask.setTask({
        text: `Найдите $${znach} (${ugol1}-${ugol} )$, если $${znach} ${ugol} =0,8$ `+
        `и $${ugol}\\in${graniz[0]}$.`,
        answers: 0,
    });
})();
//26784 26785 26786