Các câu hỏi tương tự
tinh gia tri bieu thuc:
-1-2+3+4-5-6+7+8-9-10+11+12-...-2013-2014+2015+2016
tinh gia tri bieu thuc B =1^2/2^2-1.3^2/4^2-1....2013^2/2014^2-1
Tinh gia tri cua bieu thuc : A =1+1/2+1/2^2+1/2^3+...+1/2^2014
Tinh gia tri cua bieu thuc (-1+2/5).(-1+/2/9).(-1+2/9).............(-1+2/2013)
tinh gia tri bieu thuc
A=1+1/2(1+2)+1/3(1+2+3)+....+1/2015(1+2+3+...+2015)
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
tinh gia tri bieu thuc sau : A=1+2+3+...+2015
gia tri cua bieu thuc D=2^4*2015-16*5*2^2*10^2+5^2
tim cac dang cua x sao cho
bieu thuc A = 2x-1 co gia tri duong x
bieu thuc B = 8-2x co gia tri am
bieu thuc C=2(x+3) khong am
bieu thuc D=7(2-x)khong duong