Tính nhanh :
( 1 - 1/4 ) * ( 1 - 1/9 ) * ( 1 - 1/16 ) * ( 1 - 1/25 ) * ( 1 - 1/36 )
giúp mình với mình đang gấp
tính: [1-1/4]* [1-1/9]*[1-1/16]*[1-1/25]*[1-1/36]
(1-1/2)*(1-1/3)*(1-1/4)*(1-1/5)
(1-1/4)*(1-1/9)*(1-16)*(1-1/25)*(1-1/36)
tinh nhanh
Tính nhanh:
a,1/4+2/5+6/8+9/15+8/1
b,1/2+2/4+3/6+4/8+5/10+6/12+7/14+8/16+9/18+10/20
c,1/10+4/20+9/30+16/40+25/50+36/60+49/70+64/80+81/90
Tính nhanh:
a,1/4+2/5+6/8+9/15+8/1
b,1/2+2/4+3/6+4/8+5/10+6/12+7/14+8/16+9/18+10/20
c,1/10+4/20+9/30+16/40+25/50+36/60+49/70+64/80+81/90
tính nhanh :
1/5+4/10+9/15+16/20+25/25+36/30+49/35+64/40+81/45
cần gấp mn !!!
Tính ; ( 1 - 1/4 ) x ( 1 - 1/9 ) x ( 1- 1/16 ) x ( 1-1/25 ) x ( 1 - 1/36 )
Đỗ Nguyễn Đức Hoàng giải hộ mk nhé!
1 . Tính
1+ 4 + 9 + 16 + 25 + 36 + 49 + ........ + 100
S=(1-1/4)*(1-1/9)*(1-1/16)*(1-1/25)*(1-36)