Các câu hỏi tương tự
Tìm X : (1/25x26 + 1/26x27 +...+1/29x30) x150+1.03 :[1.03x (X-1)] =22
(1/25x26+1/26x27 +...+ 1/29x30)+150+103:1,03x(X-1)=11
tìm X hộ mình nhé
(1 1 1
_____ +____+............+_______).150+1,03;(1,03.x-1)=22
25.26 26.27 29.30
tim y
( 1/ 24x25 + 1/ 25x26 + ..... + 1/ 29x30 ) x 120 + y : 1/3 = -4
Tìm x€ Z:(1/24*25+1/25*26+...+1/29*30)*120+x:1/3=-5
So sánh 1/21+1/22+1/23+1/24+1/25+1/26+1/27+1/28+1/29+1/30 với 1/3
(x + 1/5)^2 + 17/25=26/25
Giải biểu thức sau:
(1/7+1/91+1/24+1/475).25/24.x+30%=1/2
(1/6+1/66+1/176+1/336+1/546).26/25.x+30%=1/2
chứng minh:P=1+2+22+23+24+25+26+27chia hết cho 3