Question

tính nhanh (36 - 1^2).(36 - 2^2).(36 - 3^2)....(36 - 20 ^2 )

Answer 1

  

Answer 2

(36 - 1²).(36 - 2²).(36 - 3²)...(36 - 20²)

= (36 - 1²).(36 - 2²)...(36 - 6²)...(36 - 20²)

= (36 - 1²).(36 - 2²)...(36 - 36)...(36 - 20²)

= (36 - 1²)(36 - 2²)...0...(36 - 20²)

= 0