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The length of the perpendicular drawn fr...

The length of the perpendicular drawn from the origin to `2x-3y+6z+21=0`

A

21

B

5

C

3

D

7

Text Solution

Verified by Experts

The correct Answer is:
C
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JMD PUBLICATION-Probability-EXAMPLE
  1. The length of the perpendicular drawn from the origin to 2x-3y+6z+21=0

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  2. Find the distance of plane 3x + 4z + 15 = 0 from (5, 0, 0)

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  3. The intercept cut off by plane 2x + 3y - z = 6 on y-axis

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  4. Find d.r. of the line frac{4-x}{2}=frac{y}{6}=frac{1-z}{3}

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  5. If P = (1, 5, 4) and Q = (4, 1, -2) then find the d.r. of PQ.

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  6. Direction cosines of the line parallel to line frac{x-5}{2}=frac{y+3}{...

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  7. Find distance of (-2, 3, 4) from x-axis is

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  8. Find the d.r. of the normal to the plane 4x + 3y - z + 6 = 0 and

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  9. The distance between the planes, 3x+ 2y-6z-14=0 and 3x+ 2y-6z+21 =0 is...

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  10. The point which lies in the plane given by the equation 5x + y - z = 7...

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  11. If cos alpha , cos beta, cos gamma are the direction-cosines of a line...

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  12. Fill in the blanks : The direction cosines of the line joining point...

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  13. Fill in the blanks : The direction ratios of the line frac{2x - 1}{3...

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  14. Fill in the blanks : The equation of the line passing through (1, 2,...

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  15. Fill in the blanks : The x-intercept of the plane 2x - 3y + 5z + 4 =...

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  16. State whether it is true or false:If a line makes angles alpha, beta, ...

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  17. State True/False. the x-intercept of 3x - 4y + 6z = 12 is 3.

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  18. State True/False. the length of perpendicular from origin to plane 4...

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  19. Find the length of the perpendicular drawn from the point (2, 3, 7) to...

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  20. Show that the lines vecr=3hati+2hatj-4hatk+lambda(hati+2hatj+2hatk)and...

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