tinh gia tri bieu thuc: A=(1-1/(1+2))(1-1/(1+2+3))...(1-1/(1+2+3+...+2006))
tim x de :
1) -2 / 3x - 1 co gia tri duong
2) 3 - 1/2x / 2x^2 + 11 co gia tri am
3) 2/3 - 2x / -x^2 - 1 co gia tri khong am
a) tim gia tri nho nhat
A= (2x+1/3)^4 -1
b) tim gia tri lon nhat
B= - (4/9x-2/15)^6 +3
tim cac gia tri cua x de bieu thuc 3/4*x-1>1/2*x+5
Tim gia tri nho nhat cua cac bieu thuc sau:
a.(2x+1/3)^2-5/6
b.|2x-3|+|y-1/2|+3/4
gia tri (x) :1 2 3 a 5 6 7 8 9 10
tan so(n) ;2 3 1 6 3 1 4 2 1 2 /N=25
biet so trung binh cong la 5,16 . tim a
giup minh voi
Tim gia tri nho nhat cua :
-1/(x-1)^2 + 3
cau 1:tinh gia tri bieu thuc
3/4 +1/1/4 *2/2/3-(-1/2)^2:6/5
cho ma co 2 dau/la hon so,con 1 dau la phan so,con ^2 la mu 2
cau 2:tim x biet
( x-1)^5= -32
cho ^5 co nghia la mu 5
Giai giúp minh voi! 1 cau cung duoc ( Abs (x) la tri tuyet doi cua x vi may minh khong go duoc dau tri tuyet doi )
Tim gia tri nho nhat
a Abs(x-1/4) + Abs(x-3/4)
b. Abs(x-1) + Abs(x-2) + Abs(x-5)
Tim x
Abs(x-3/2) + Abs(2,5-x) = 0
Abs(3x-1) = Abs(4-x)
Abs(2x+3) = x+3