Câu 5 :
a) (10 + 2) * (10 + 2) / (3 + 1)
b) ((10 + 2) * (10 + 2) - 24) / (3 + 1)
c) 2 * x >= 10
d) (a + b > c) and (b + c > a)
Câu 6 :
program A01;
uses crt;
var a, b, c : integer;
begin
clrscr;
write('Nhap 3 so = '); readln(a, b, c);
write('Trung binh cong 3 so = ', (a + b + c) / 3 : 2 : 2);
readln
end.
Câu 7 :
program A01;
uses crt;
var a, b, c, p, s : real;
begin
clrscr;
write('Nhap so do 3 canh = '); readln(a, b, c);
p := (a + b + c) / 2;
s := sqrt(p * (p - a) * (p - b) * (p - c));
write('Dien tich = ', s : 2 : 2);
readln
end.
