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Tamil Nadu Board of Secondary EducationHSC Science Class 11

Choose the correct alternative:If aijkba→=i^+2j^+2k^,|b→| = 5 and the angle between aa→ and bb→ is π6, then the area of the triangle formed by these two vectors as two sides, is - Mathematics

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Question

Choose the correct alternative:
If `vec"a" = hat"i" + 2hat"j" + 2hat"k", |vec"b"|` = 5 and the angle between `vec"a"` and `vec"b"` is `pi/6`, then the area of the triangle formed by these two vectors as two sides, is

Options

  • `7/4`

  • `15/4`

  • `3/4`

  • `17/4`

MCQ

Solution

`15/4`

shaalaa.com
Product of Vectors
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Chapter 8: Vector Algebra - Exercise 8.5 [Page 82]

APPEARS IN

Samacheer Kalvi Mathematics - Volume 1 and 2 [English] Class 11 TN Board
Chapter 8 Vector Algebra
Exercise 8.5 | Q 25 | Page 82

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