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Find the angel between the following pair of lines: ` vec r=2 hat i-5 hat j+ hat k+lambda(3 hat i+2 hat j+6 hat k)a n d vec r=7 hat i-6 hat k+mu( hat i+2 hat j+2 hat k)` `x/2=y/2=z/1a n d(x-5)/4=(y-2)/1=(z-3)/8`

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CENGAGE PUBLICATION-THREE DIMENSIONAL GEOMETRY-All Questions
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