VectorHard
Question
If the vectors 
= (clog2x) î − 6ĵ + 3
and 
= (log2x) î + 2ĵ + (2clog2 x)
make on obtuse angle for any x ∈ (0, ∞), then c belongs to -
= (clog2x) î − 6ĵ + 3 and = (log2x) î + 2ĵ + (2clog2 x) make on obtuse angle for any x ∈ (0, ∞), then c belongs to -Options
A.(−∞, 0)
B.(−∞, −4/3)
C.(−4/3, 0)
D.(−4/3, ∞)
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