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| 1. |
baralpha=a_(1)bari+a_(2)barj+a_(3)bark where a_(1), a_(2), a_(3) are rational numbers. If baralpha makes an angle 45^(0) with the vector bar beta=sqrt(2)i+3sqrt(2)j+4bark and |baralpha| is rational, then |baralpha| lies in |
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Answer» ZX plane |
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