If â, b̂, ĉ are unit vectors and |â+b̂|² = |b̂+ĉ|² = |ĉ+â|² = 4, then…
PYQ UPPSC LT Grade (Assistant Teacher) 2025
If â, b̂, ĉ are unit vectors and |â+b̂|² = |b̂+ĉ|² = |ĉ+â|² = 4, then |2â+3b̂+4ĉ| is equal to :
- A.
4√5
- B.
81
- C.
8
- D.
9
Attempted by 7 students.
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