2716 : 910 . 310=348 : 320 . 310=348-32+10=326
\(27^{16}:9^{10}.3^0=\left(3^3\right)^{16}:\left(3^2\right)^{10}.1=3^{3.16}:3^{2.10}=3^{48}:3^{20}=3^{48-20}=3^{28}\)
tinh gia tri bieu thuc bang cach hop li nhat b=1.3.5...............2011.2013/1008.1009..............2014
tinh gia tri cac bieu thuc sau theo cach hop li nhat
A=25.(4-300)
B=83.35-35.183
tinh gia tri cua bieu thuc sau mot cach nhanh
1992.1991 1991-1991.1992 1992
Tim gia tri nho nhat cua bieu thuc: P=|x|+7
(x€Z)
Tim gia tri lon nhat cua bieu thuc :Q=9-|x|
CHO bieu thuc
B=17,58*43+57*17,58/293*A
a)tim gia tri cua bieu thuc Bkhi a=2
b)tinh gia tri a khi B=2
c)tim gia tri so tu nhien ad biet bieu thuc B co gia tri lon nhat ,gia tri lon do la bao nhieu
Voi sau chu so 3 va dau ngoac, dau phep tinh va so mu. Hay viet thanh bieu thuc co gia tri 106 bang 3 cach.
Tim gia tri nho nhat cua y de bieu thuc B=100-|y+3| co gia tri lon nhat, tim gia tri lon nhat do
Tim gia tri cua x de bieu thuc A=|x-3|+(-100)co gia tri nho nhat ,tim gia tri nho nhat ay
Tinh gia tri cua cac bieu thuc sau bang cach hop li
a) 125 : (-61) . (-23) . (-1) 2n
b) 136 . (-47) + 36 . 47
