यदि सदिश  एक इकाई सदिश है तो x का मान ज्ञात करें।

  1. √0.29
  2. √0.81
  3. √0.35
  4. √0.71

Answer (Detailed Solution Below)

Option 4 : √0.71
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General Knowledge for All Defence Exams (शूरवीर): Special Live Test
20 Qs. 20 Marks 16 Mins

Detailed Solution

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अवधारणा:

  • एक सदिश का परिमाण: एक सदिश का परिमाण निम्न द्वारा दिया जाता है:

  • इकाई सदिश: वह सदिश है, जिसमें एक इकाई का परिमाण होता है, एक इकाई सदिश के रूप में जाना जाता है।

स्पष्टीकरण:

दिया गया है कि

चूंकि यह एक इकाई सदिश है, इसलिए इसका परिमाण 1 होगा।

सदिश A का परिमाण

x = .70.71

तो सही उत्तर विकल्प 4 है।

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