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Let L be a line obtained from the intersection of two planes x+2y+z=6 and y+2z=4. If point P(α,β,γ) is the foot of perpendicular from (3,2,1) on L, then the value of 21(α+β+γ) equals: |
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Answer» Let L be a line obtained from the intersection of two planes x+2y+z=6 and y+2z=4. If point P(α,β,γ) is the foot of perpendicular from (3,2,1) on L, then the value of 21(α+β+γ) equals: |
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