tell me answe of this ??
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Answer:
(2)
Explanation:
Magnitude of resultant vector
(p+q) = √[ 1² + (-2)² + 2² ]
= √9
= 3
Vector parallel to Q will be = -√3i -√3j -√3k
So, the vector needed will be (2), because magnitude of (2) = √[(√3)² + (√3)² + (√3)²]
= √9
= 3
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