tìm GTLN, GTNN

\(y=\sqrt{3}\sin2x+\cos2x\)

APOLLO

5 tấn 762 tấn = 5.762 tấn

285 g = 0.285 kg

4m 5cm =  4.05 m

2006mm = 2.006 m

2m 75mm=2.0075 m

\(\dfrac{1}{3}+\dfrac{2}{9}\times\dfrac{3}{4}=\dfrac{1}{3}+\dfrac{6}{36}=\dfrac{1}{3}+\dfrac{1}{6}=\dfrac{2}{6}+\dfrac{1}{6}=\dfrac{3}{6}=\dfrac{1}{2}\)

She hasn’t worn that dress since her sister’s wedding.

\(\dfrac{3}{2}+\dfrac{5}{4}+\dfrac{9}{8}+\dfrac{17}{16}+\dfrac{33}{32}+\dfrac{65}{64}=\dfrac{96}{64}+\dfrac{80}{64}+\dfrac{68}{64}+\dfrac{66}{64}+\dfrac{65}{64}=\dfrac{447}{64}\)

\(\left(\dfrac{3}{2}+\dfrac{65}{64}\right)+\left(\dfrac{5}{4}+\dfrac{33}{32}\right)+\left(\dfrac{9}{8}+\dfrac{17}{16}\right)=\dfrac{161}{64}+\dfrac{73}{32}+\dfrac{35}{16}=\dfrac{161}{64}+\dfrac{146}{64}+\dfrac{140}{64}=\dfrac{447}{64}\)

tháng 1; tháng 3; tháng 5; tháng 7; tháng 8; tháng 10; tháng 12

=> Có 7 phần tử

\(\dfrac{4}{9}+\dfrac{6}{9}+\dfrac{7}{9}=\dfrac{17}{9}\)

\(\dfrac{1}{2}\times\dfrac{2}{3}:\dfrac{1}{2}=\dfrac{1}{2}\times\dfrac{2}{3}\times2=\dfrac{2}{3}\)

\(\dfrac{2}{3}:\dfrac{2}{3}\times1=\dfrac{2}{3}\times\dfrac{3}{2}\times1=\dfrac{6}{6}=1\)