Đường thẳng  là giao của hai mặt phẳng  và  thì có phương trình là  

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Nearly 2,000 people climbing Mount Everest and at least 202 have died when trying to

  summit the mount, and the corpses have been left on the mountain.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Brent Bishop is the leader of the Sagarmatha Environmental Expedition (SEE), a nonprofit

  organization which established to clean Everest.

• Find a mistake in the four underlined parts of the sentence and correct it:

  The US’s oil consumption is approximately 21 million barrels a day, howeve production

  that is only 6 million barrels a day.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Over two decades Vietnam has emerged as an important regional produce of oil and natural

  gas in Southeast Asia.
  
  
  

•  Find a mistake in the four underlined parts of the sentence and correct it:

  Half of Vietnam’s domestic energy consumption come from oil, with hydropower 20%, coal

  18%, and natural gas 12%.

• Find a mistake in the four underlined parts of the sentence and correct it:

  While those efforts have helped Vietnam expand production of oil and natural gas, domestic

  consumption of these resources has also increased as a result of rapid economic grow.

• Find a mistake in the four underlined parts of the sentence and correct it:

  At present, it is estimated that coal accounts for 12 percent of Vietnam’s electricity

  generation; although, some expect that this figure will rise to 25 percent in the future.

• Find a mistake in the four underlined parts of the sentence and correct it:

  The Asian Games, which also called the ASIAD, is a multi-sport event held every four years

  among athletes from all over Asia.

• Find a mistake in the four underlined parts of the sentence and correct it:

  The Asian Games is regulated by the Olympic Council of Asia under the supervise of the

  International Olympic Committee.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Competitors which are entered by the National Olympic Committee to represent 

  their country.