0,75=75 %

không á

1. do

2.will

bạn nhớ vote cho mình nhaa

M=36-(35+34+...+31+30)

   Đặt A=35+34+...+31+30

        3A=3⁶+3⁵+...+3²+31

        3A-A=3⁶+3⁵+...+3²+31-35-34-...-31-30

        2A=3⁶-30=>A=\(\dfrac{3^6-3^0}{2}\)

 Thay A vào M ta có:

M=3⁶-\(\dfrac{3^6-3^0}{2}\)

M=\(\dfrac{2.3^6}{2}\)-\(\dfrac{3^6-3^0}{2}\)

M=\(\dfrac{3^6.\left(2-1\right)-1}{2}\)

M=\(\dfrac{3^6.1-1}{2}\)

M=\(\dfrac{3^6-1}{2}\)

M=364