3/x=y/35=-36/84 => x=3.84/-36
y=35.84/ -36
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viet tap hop cac so nguyen x
1) 9 < x <= -2
2) -35 phan 7 < x < -1
3) -21 phan 3 <= x <= 0 phan 7
Giup mik nhanh nha : x phan 3 = 7 phan y ; x phan y = 1 phan 6 ; x phan 7 = y phan -3 . CAC BAN NHANH NHA
Rut gon phan so:
x^39+x^36+...+x^3+1
phan x^40+x^38+...+x^2+1
mot nha may co 3 phan xuong . so cong nhan cua phan xuong 1 bang 36% tong so cong nhan nha may so cong nhan cua phan xuong 2 bang 3/5 so cong nhan cua phan xuong 3 . biet so cong nhan cua phan xuong 3 hon so cong nhan cua phan xuong 1 la 18 nguoi . tinh so nguoi moi phan xuong
tim x;y thuoc z biet y phan tru 2 bang x tru 2 nhan y phan x
2 nhan x phan 3 nhan y cong x bang1 phan y
giup minh voi bai toan phan so nha
2 phan 15 + 2 phan 35 + 2 phan 63 ....+2 phan 399
10 phan 56 + 10 phan 140 + 10 phan 260 +....+ 10 phan 1400
neu giup dc thanks ca nha
tim x, y thuoc Z biet 3/x/ phan 2 +5/y/ phan 3=8
-3 phan x = y phan 2 và x<0<y
x tru 3 phan y tru 2 bang 2 phan 3 va x tru y bang 4