\(2.4.10+4.6.8+14.16.\frac{20}{3}.6.15+6.9.12.21.24.30\)
\(=16.5+16.12+14.16.40.15+16.36.21.27.30\)
\(=16.\left(5+12+14.40.15+36.21.27.30\right)\)
\(=16.620777\)
\(=9932432\)
mk ko biết có đúng ko, nhưng mk làm ra số to quá!
CHÚC BN HỌC TỐT!!!!!
Tính: B = 2.4.10+4.6.8+14.16.20/3.6.15+6.9.12+21.24.30
tính
B=(2.4.10+4.6.8+14.16.20)/(3.6.15+6.9.12+21.24.30)
\(\frac{2.4.10+4.6.8+14.16.20}{3.6.15+6.9.12+21.24.30}\)
B=\(\frac{2.4.10+4.6.8+14.16.20}{3.6.15+6.9.12+21.24.30}\)
B = \(\frac{2.4.10+4.6.8+14.16.20}{3.6.15+6.9.12+21.24.30}\)
tính nhanh:D=2.4.6+4.6.8+...+46.48.50
tính nhanh B= 2.4.6+4.6.8+......+96.98.100
Tính nhanh: 5/2.4.6+5/4.6.8+5/6.8.10+...+5/20.22.24
Tính
B=\(\frac{2.\text{ 4}.10+\text{ 4}.6.8+1\text{ 4}.16.20}{3.6.15+6.9.12+21.\text{ 24.30}}\)
