A=\(\dfrac{1\times5\times6\times(1+2+49)}{1\times3\times5\times\left(1+2+49\right)}\)

=\(\dfrac{1\times5\times6}{1\times3\times5}\)

=2

Vây A=2

3-2+5=1+5=6

96

73 cm2

In sprite of being so young, Quang Hai plays football exellently

Good luck with your studies!

\(\dfrac{1}{30}\)công việc

The Earth has run out of oil and gas recently. 

She often goes to the swimming pool when it is hot

88 km

4h

\(\dfrac{19}{30}\) nha