x+1+x+3+...+x+99=0
99x+(1+3+...+99)=0
99x+{(99+1).50:2}=0 (Tìm số số hạng:{99-1}:2+1=50)
99x+2500=0
99x =0-2500
99x =-2500
x =-2500:99
x =.......(Bạn tự tính nha)
^_^ ****
Tìm x biết (x+1)+(x+3)+(x+5)+....+(x+99)=0
Tìm x biết: \(\left(x+1\right)+\left(x+3\right)+\left(x+5\right)+...+\left(x+99\right)=0\)
Tìm x biết:
a) | 2x - 5 | + | y - 3 | = 0
b. | 2x - y + 1| ^3 + ( 2 - 3y )^2 = 0
c. | x + 1 / 1x2 | + |x + 1/2x3 | +.....+ |x+1/99+100 | = 100x
Tìm x biết:
a) | 2x - 5 | + | y - 3 | = 0
b. | 2x - y + 1| ^3 + ( 2 - 3y )^2 = 0
c. | x + 1 / 1x2 | + |x + 1/2x3 | +.....+ |x+1/99+100 | = 100x
Tìm x biết:
a) | 2x - 5 | + | y - 3 | = 0
b. | 2x - y + 1| ^3 + ( 2 - 3y )^2 = 0
c. | x + 1 / 1x2 | + |x + 1/2x3 | +.....+ |x+1/99+100 | = 100x
tìm x biết:
\(\frac{x-1}{99}-\frac{x+1}{101}+\frac{x-2}{98}-\frac{x+2}{102}+\frac{x-3}{97}-\frac{x+3}{103}+\frac{x-4}{96}-\frac{x+4}{104}=0\)
4 Tìm x :
(x+2).(4-x)=0 ; d) (x+1)+(x+3)+(x+5)+...+(x+99)=0
tìm \(x\in Z\)
a) (x + 1) +(x + 3) + (x + 5) +.....+ (x + 99) = 0
b) (x - 3) + (x - 2) + (x - 1) + .....+ 10 + 11 = 0
Tìm x biết (x-1)+(x-3)+(x-5)+......+(x-99)=-2500
