Tính:(100 – 1^2 ) . (100 – 2^2 ) . (100 – 3^2 ) . … . (100 – 99^2 )
Tính: (100-1^2)(100-2^2)(100-3^3)...(100-99^2)
Tính tổng 100-(1+1/2+1/3+1/4+...+1/100)/1/2+2/3+3/4+....+99/100
Tính
1) S=1-2+3-4+......+99-100
2) P=2-4+6-8+........+98-100
3) Q=(-1)+2+(-3)+.......+(-99)+100
Tính nhanh:
101+100+........+3+2+1/101-100+100-99+...........+3-2+1
1+(1+2)+(1+2+3)+...+(1+2+3+4+...+99+100)/(1*100+2*99+...+99*2+100*1)*2013
Tính:
a; C=101+100+99+98+............+3+2+1/101-100+99-98+.................+3-2+1
b; D=3737.43-443.37/2+4+6+....................+100
tính
a. A= 101+100+99+98+....+3+2+1/101-100+99-98+...+3-2+1
b,B= 3737.43-4343.37/2+4+6+...+100
Tính nhanh
a) 1 + 2 + 3 + … + 99 + 100 b) 2 + 4 + 6 + … + 96 + 98
c) (–1) + 2 + (–3) + 4 + … + (–99) +100 d) –1 + 2 – 3 + 4 – … – 99 + 100
