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AP EAMCET2020MathematicsVector Algebra

If is the angle of a regular pentagon, then |( ) i +( ) j +( ) k |=

Options

  1. A| 18|
  2. B| cosec 18|
  3. C- 18
  4. Dcosec 108

Correct answer

B. | cosec 18|

Step-by-step solution

No solution. Refer to answer key.

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