HOC24
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Trên hình vẽ ta có đường tròn tâm O, bán kính 10cm, tứ giác OABC là hình vuông với A và C nằm trên đường tròn. Tìm phần diện tích của hình vuông nằm ngoài đường tròn.
x + \(\dfrac{1}{2}+\dfrac{1}{6}+\dfrac{1}{12}+\dfrac{1}{20}+\dfrac{1}{30}=\dfrac{47}{42}\)
1 You might be off the team unless you say sorry for hitting the referee.Unless you2 If Stella doesn't start practising, she won't play in the match.Unless Stella3 Unless you get lots of exercise, you might get fat.If you don't4 They'll miss the start of the competition unless they leave right now.If they don't5 If James doesn't score soon, we'll take him off the pitch.Unless James
Em nghĩ là có
E Complete the second sentence so it means the same as the first. Use as many words as you need.I 1 You might be off the team unless you say sorry for hitting the referee.Unless you2 If Stella doesn't start practising, she won't play in the match.Unless Stella3 Unless you get lots of exercise, you might get fat.If you don't4 They'll miss the start of the competition unless they leave right now.If they don't5 If James doesn't score soon, we'll take him off the pitch.Unless James
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