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The set of value(s) of α∈R for which vectors →a=x^i+(x−1)^j+^k and →b=(x+1)^i+^j+α^k make an acute angle for ∀x∈R, is |
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Answer» The set of value(s) of α∈R for which vectors →a=x^i+(x−1)^j+^k and →b=(x+1)^i+^j+α^k make an acute angle for ∀x∈R, is |
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