Если F (х) = 1 / х + х ^ 2

а) f(-1) = 1/(-1) + (-1)² = -1 + 1 = 0;

g(-1) = 2/(-1 - 8) = -2/9;

g(3) = 2/(3 - 8) = 2/5; 

f(-1) + g(-1) + g(3) = 0 + (-2/9) + 2/5 = -2/9 + 2/5 = -10/45 + 18/45 = 8/45;

б) f(-2) = 1/(-2) + (-2)² = -1/2 + 4 = 3,5;

4f(-2) = 3,5 * 4 = 14;

g(0,5) = 2/(0,5 - 8) = 2/-7,5 = -4/15;

4f(-2) * g(0,5) = 14 * (-4/15) = -56/15;

в) f(0,5) = 2 + 0,25 = 2,25;

g(2) = -1/3;

3g(2) = -1;

f(0,5) - 3g(2) = 2,25 + 1 = 3,25;

г) f(1/4) = 4 + 1/16 = 4,0625;

16f(1/4) = 16 * 4,0625 = 65;

g(-2/5) = 2/(-2/5 - 8) = -2/8,4 = -5/21;

2g(-2/5) = 2 * (-5/21) = -10/21;

16f(1/4) + 2g(-2/5) = 65 - 10/21 = 1355/21.