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The equation of a line which passes through point `A(1,0,-1)` and perperdicular to the straight lines `vecr=2hatj-hatj+hatk+lambda"("2hati+7hatj-3hatk")"` and `vecr=3hati-hatj+3hatk+lambda"("2hati-2hatj+5hatk")",` is -A. `(x-2)/(29) =(y)/(-16) =(z+1)/(18)`B. `(x-1)/(29)=(y)/(-16)=(z+1)/(-18)`C. `(x-1)/(16) =(y)/(-16)=(z+1)/(-18)`D. None of these |
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Answer» Correct Answer - B Let the equation of line passes through `(x-1)/(a) =(y-0)/(b) =(z+1)/(C)" " .........(i)` it is perpendicular to two given lines `:. 2a +7b -3c =0 " "............(2)` `"and " 2a -2b +5c =0 " ".........(3)` from (2) & (3) `(a)/(29) =(b)/(-16) =(c)/(-18)` `:. Eq^(n) "of line"` `(x-1)/(29) =(y -0)/(-16) =(z+1)/(-18)` |
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