Mathematics · Vector Algebra
A vector a has components 3p and 1 with respect to a rectangular Cartesian coordinate system. This system is rotated through a certain angle about the origin in the counter-clockwise direction. If, with respect to the new system, the vector a has components p + 1 and √10, then a possible value of p is:
- 11
- 2-54
- 345
- 4-1✓
Correct answer
-1
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