a = 0.1
b = 2.2
INPUT "vvedite chislo shagov N=", n
h = (b - a) / n
s = 0
FOR x = a + h / 2 TO b STEP h
s = s + (SQR(1.5 * x + 0 / 6) / (1.6 + SQR(0.8 * x ^ 2 + 2))) * h
NEXT
PRINT s