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Find the acute angle between the straigh...

Find the acute angle between the straight lines  ` (x-4)/(2)=(y)/(1)=(z+1)/(-2) ` and ` (x-1)/(4)=(y+1)/(-4)=(z-2)/(2) ` state whether they are parallel or perpendicular.

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The correct Answer is:
` cos^(-1)(0)((pi)/(2)) `
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FULL MARKS-APPLICATIONS OF VECTOR ALGEBRA-Additional Questions Solved
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  7. If vecx.veca=0 , vecx.vecb=0 , vecx.vecc=0 and vecxnevec0 ...

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  12. If veca =3veci+2vecj-4veck , vecb =5veci-3vecj+6veck , vecc =5ve...

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  13. If veca =2veci+3vecj-veck , vecb =2veci+5veck , vecc =vecj-3veck...

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  14. Find the vector and cartesian equations of the straight line passing t...

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  16. Find the angle between the following lines vecr=3veci+2vecj-veck+t(v...

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  17. Find the angle between the following lines (x-1)/(2)=(y+1)/(3)=(z-4)...

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  18. Find the distance between the parallel lines vecr=(hati-hatj)+t(2hati-...

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  19. Show that the lines vecr=(hati-hatj)+t(2hati+hatk) and vecr=(2hati-hat...

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  20. Show that the lines (x-1)/(3)=(y-1)/(-1)=(z+1)/(0) and (x-4)/(2)=...

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