Câu hỏi của NHẬT NAM TRẦN

Question

tính hợp lí

(81-1^2)x(81-2^2)x(81-3^2)x...x(81-9^2)

Dang Tung · Accepted Answer

(81-1^2)(81-2^2)(81-3^2)....(81-9^2)

= (81-1^2)(81-2^2)(81-3^2)....(81-81)

= (81-1^2)(81-2^2)(81-3^2)....0

= 0Câu trả lời: (81-1^2)(81-2^2)(81-3^2)....(81-9^2)

= (81-1^2)(81-2^2)(81-3^2)....(81-81)

= (81-1^2)(81-2^2)(81-3^2)....0

= 0