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Find the length and the foot of the p...

Find the length and the foot of the perpendicular from the point `(7,14 ,5)` to the plane `2x+4y-z=2.`

A

`sqrt(21)`

B

`4sqrt(21)`

C

`2sqrt(21)`

D

`3sqrt(21)`

Text Solution

Verified by Experts

The correct Answer is:
D
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  3. Find the length and the foot of the perpendicular from the point (7...

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  9. The angle between the line of intersection of planes barr.(hati+3hatj-...

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  13. If the angle between the planes r.(mhati-hatj+2hatk)+3=0 and r*(2hati-...

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  14. The acute angle between the two planes x + y + 2z = 3 and 3x - 2y ...

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  15. The angle between planes 3x-6y+2z=8and2x+2y-2z=10 is

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  16. The angle between planes 3x-6y+2z=8and 2x+2y-2z=10 is

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  17. If the planes ax+by+cz+d=0anda(1)x+b(1)y+c(1)z+d(1)=0 be mutually perp...

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  18. The value of k for which the planes 3x-6y-2z=7 and 2x+y-kz=5 areperpen...

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  19. If the planes 3x-2y+2z+17=0 and 4x+3y-kz=25 are mutually perpendicul...

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  20. The angle between the line barr=(hati+hatj-hatk)+lamda(hati-hatj+hatk)...

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