Tính Hợp lí A= (-2/3)- 4* (1/2 + 3/4)^2 B= 2*(-1)^4+ 3/4^2 3/8

1 bình luận về “Tính Hợp lí A= (-2/3)- 4* (1/2 + 3/4)^2 B= 2*(-1)^4+ 3/4^2 3/8”

1. A= (-2/3) – 4 x ( 1/2 + 3/4 ) ^2

   A= (-2/3) – 4 x ( 2/4 + 3/4 ) ^2

   A= (-2/3) – 4 x 5/4 ^2

   A= (-2/3) – 4 x 25/16

   A= (-2/3) – 25/4

   A= (-8/12) – 75/12

   A= -83/12

   B= 2 x (-1)^4 + 3/4^2 x 3/8

   B= 2 x 1 + 3/4^2 x 3/8

   B= 2 + 3/4^2 x 3/8

   B= 2+ 3/16 x 3/8

   B= 2+ 9/16 /8

   B= 2+ 9/128

   B= 265/128

   Trả lời