cho a = 2 mu 13 nhan 5 mu 7, tim cac so chu so cua a
tim chu so tan cung cua bieu thuc : 4n+3 +4n+2 -4n+1 -4n voi n la so tu nhien lon hon 2
(4-5x)^3 = -1/125. ^3 day la ko hieu cua mu 3. Gi up Minh voi. De bai la Tim x
tim 4 so tan cung cua 321978
GIUP MINH VOI MINH DANG CAN GAP
S bang 2 mu 2 cong 4 mu 2 cong 6 mu 2 cong.......cong 20 mu 2
tim chu so tan cung cua 2^2002.3
Tim x,y la so nguyen
a) 2x-3y+5= xy
b) x mu 2 +2xy+2x+4y
B2 Tim x,y la so nguyen to
x mu 2 -2y mu 2 =1
B3 Tim so tu nhienx,y
7 .(x-2004) mu 2 = 23- y mu 2
Tim 3 chu so tan cung cua 2^1954
Tim gia tri nho nhat cua bieu thuc :
A=x mu 4 +3x mu 2 +2