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Ta có:
(x + 1) + (x + 2) + ... +(x + 100) = 5750
100x + 1 +2 + 3 + 4 + 5 +... + 100= 5750
100x + \(\frac{1+100}{2}\) = 5750
100x + 1+ 100 = 11500
100x = 11399
x = 113,99
(x+1)+(x+2)+(x+3)+...+(x+100)=5750
(x+1) + (x+2) + (x+3) +....+ (x+100) = 5750
x+1+x+2+x+3+.......x+100=5750
x(x+1)+(x+2)+(x+3)+...+(x+100)=5750
Tìm x biết: (x+1)+(x+2)+(x+3)+...+(x+100)=5750
(x + 1) + (x + 2) + (x + 3) + ... + (x + 100) = 5750
(x+1)+(x+2)+(x+3)+...+(x+100)=5750
(x+1)+(x+2)+(x+3)+...+(x+100)=5750
(x+1)+(x+2)+(x+3)+....+(x+100)=5750
