\(140:\left\{80-\left[130-\left(12-4\right)\right]^2\right\}\)
\(=140:\left[80-\left(130-8\right)^2\right]\)
\(=140:\left(80-122^2\right)\)
\(=140:\left(80-14884\right)\)
\(=140:\left(-14804\right)\)
\(=-\dfrac{35}{3701}\)
a,(-123)+|-13|+(-7)
b,-|-33|+(-15)+20-|45-40|-57
c,9.|40-37|_2.13-52|
d,12+15+18+...+90
e,140:{80-[130-(12-4)^2]}
giúp mk với
80-(130-(12-4)2
80- [130- (12- 4) mẫu 2]
80-[130-(12-4)mu2]
80-(130-(12-4)2) = ?
Thực hiện các phép tính: 80 – [130 – (12 - 4)2]
{ 80 - [ 130-(12-4 mũ 2)] } :2
80-[130-(12-4) luy thua 2]
Tính nhanh:
a, 23 . 17 - 23 . 14
b, 80 - [130 - (12 - 4)2]
80-[130-(12-4)\(^2\)]
