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InterviewSolution
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Consider →r=a^i+b^j+c^k. If α, β and γ be the projection of →r along 2^i+^j√5, −2^i+^j√5 and ^k respectively such that |α|=|β|=|γ| and |→r|=1, the number of such ordered triplets (a,b,c) is less than |
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Answer» Consider →r=a^i+b^j+c^k. If α, β and γ be the projection of →r along 2^i+^j√5, −2^i+^j√5 and ^k respectively such that |α|=|β|=|γ| and |→r|=1, the number of such ordered triplets (a,b,c) is less than |
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