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Statement 1: A point on the line (x+2)/3...

Statement 1: A point on the line `(x+2)/3=(y+1)/2=(z-3)/2` at a distance `3sqrt(2)` from the point `(1,2,3)` lies on the lne `(x+7)/5=(y+5)/4=(z-2)/1`
Statement 2: If `d` is the distance between the point `(-1,-5,-10)` and the point of intersectionof the line `(x-2)/3=(y+1)/4=(z-2)/12` with the plane `x-y+z=5` then `d=13`

A

A.Statement-1 is True, Statement-2 is True, Statement-2 is a correct explanation for Statement-1.

B

B. Statement-1 is True, Statement-2 is True, Statement-2 is not a correct explanation for Statement-1.

C

C. Statement-1 is True, Statement-2 is False.

D

D. Statement-1 is False, Statement-2 is True.

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The correct Answer is:
To solve the problem, we will analyze both statements step by step. ### Statement 1: We need to find a point on the line given by the equation: \[ \frac{x + 2}{3} = \frac{y + 1}{2} = \frac{z - 3}{2} \] Let this common ratio be \( r \). Then we can express \( x, y, z \) in terms of \( r \): \[ x = 3r - 2, \quad y = 2r - 1, \quad z = 2r + 3 \] Next, we need to find the distance from the point \( (1, 2, 3) \) to the point \( (3r - 2, 2r - 1, 2r + 3) \). The distance formula in 3D space is given by: \[ d = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2 + (z_1 - z_2)^2} \] Substituting the coordinates: \[ d = \sqrt{(1 - (3r - 2))^2 + (2 - (2r - 1))^2 + (3 - (2r + 3))^2} \] This simplifies to: \[ d = \sqrt{(3 - 3r)^2 + (3 - 2r)^2 + (-2r)^2} \] Calculating each term: 1. \( (3 - 3r)^2 = 9(1 - r)^2 = 9(1 - 2r + r^2) = 9 - 18r + 9r^2 \) 2. \( (3 - 2r)^2 = 9 - 12r + 4r^2 \) 3. \( (-2r)^2 = 4r^2 \) Combining these: \[ d^2 = (9 - 18r + 9r^2) + (9 - 12r + 4r^2) + 4r^2 \] \[ = 18 - 30r + 22r^2 \] We know that the distance is given as \( 3\sqrt{2} \), so: \[ d^2 = (3\sqrt{2})^2 = 18 \] Setting the two expressions for \( d^2 \) equal: \[ 18 - 30r + 22r^2 = 18 \] This simplifies to: \[ -30r + 22r^2 = 0 \] Factoring out \( r \): \[ r(22r - 30) = 0 \] Thus, \( r = 0 \) or \( r = \frac{30}{22} = \frac{15}{11} \). Now, substituting \( r = 0 \): \[ x = -2, \quad y = -1, \quad z = 3 \] Substituting \( r = \frac{15}{11} \): \[ x = 3\left(\frac{15}{11}\right) - 2 = \frac{45}{11} - \frac{22}{11} = \frac{23}{11} \] \[ y = 2\left(\frac{15}{11}\right) - 1 = \frac{30}{11} - \frac{11}{11} = \frac{19}{11} \] \[ z = 2\left(\frac{15}{11}\right) + 3 = \frac{30}{11} + \frac{33}{11} = \frac{63}{11} \] Now we check if these points lie on the second line: \[ \frac{x + 7}{5} = \frac{y + 5}{4} = z - 2 \] For \( r = 0 \): \[ \frac{-2 + 7}{5} = 1 \quad \text{and} \quad \frac{-1 + 5}{4} = 1 \quad \text{and} \quad 3 - 2 = 1 \] Thus, the point \( (-2, -1, 3) \) lies on the second line. ### Conclusion for Statement 1: The first statement is **true**. ### Statement 2: We need to find the distance \( d \) between the point \( (-1, -5, -10) \) and the point of intersection of the line: \[ \frac{x - 2}{3} = \frac{y + 1}{4} = \frac{z - 2}{12} \] with the plane \( x - y + z = 5 \). Let \( r \) be the common ratio: \[ x = 3r + 2, \quad y = 4r - 1, \quad z = 12r + 2 \] Substituting these into the plane equation: \[ (3r + 2) - (4r - 1) + (12r + 2) = 5 \] Simplifying: \[ 3r + 2 - 4r + 1 + 12r + 2 = 5 \] \[ 11r + 5 = 5 \implies 11r = 0 \implies r = 0 \] Thus, the point of intersection is: \[ x = 2, \quad y = -1, \quad z = 2 \] Now we calculate the distance \( d \): \[ d = \sqrt{(2 - (-1))^2 + (-1 - (-5))^2 + (2 - (-10))^2} \] Calculating each term: 1. \( (2 + 1)^2 = 3^2 = 9 \) 2. \( (-1 + 5)^2 = 4^2 = 16 \) 3. \( (2 + 10)^2 = 12^2 = 144 \) Combining these: \[ d^2 = 9 + 16 + 144 = 169 \] Thus, \( d = \sqrt{169} = 13 \). ### Conclusion for Statement 2: The second statement is also **true**. ### Final Conclusion: Both statements are true, but statement 2 does not explain statement 1.

To solve the problem, we will analyze both statements step by step. ### Statement 1: We need to find a point on the line given by the equation: \[ \frac{x + 2}{3} = \frac{y + 1}{2} = \frac{z - 3}{2} \] Let this common ratio be \( r \). Then we can express \( x, y, z \) in terms of \( r \): ...
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OBJECTIVE RD SHARMA ENGLISH-PLANE AND STRAIGHT LINE IN SPACE -Section II - Assertion Reason Type
  1. Consider the planes 3x-6y-2z=15 and 2x+y-2z=5. Statement 1:The parame...

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  2. Consider three planes P(1):x-y+z=1, P(2):x+y-z=-1 and P(3):x-3y+3z=2...

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  3. Statement 1: Let A,B,C be the image of point P(a,b,c) in YZ,ZX andXY p...

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  4. Consider the plane pi:x+y-2z=3 and two points P(2,1,6) and Q(6,5,-2). ...

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  5. Statement 1: Lthe cartesian equation of the plane vecr=(hati-hatj)+lam...

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  6. Statement 1: If the vectors veca and vecc are non collinear, then the ...

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  7. Statement 1: If a is an integer the the straight lines vecr=hati+2ha...

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  8. Statement-I The lines (x-1)/(1)=(y)/(-1)=(z+1)/(1) and (x-2)/(1)=(y+1)...

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  9. Statement 1: A point on the line (x+2)/3=(y+1)/2=(z-3)/2 at a distance...

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  10. Consider the line L:vecr(hati+3hatj-hatk)+lamda(hatj+2hatk) and the pl...

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  11. Statement 1: The plane 5x+2z-8=0 contains the line 2x-y+z-3=0 and 3x+y...

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  12. Statement-I The point A(3, 1, 6) is the mirror image of the point B(1,...

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  13. Statement-I The point A(1, 0, 7) is the mirror image of the point B(1,...

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  14. The equations of two straight lines are (x-1)/2=(y+3)/1=(z-2)/(-3) a...

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  15. Given two straight lines whose equations are (x-3)/1=(y-5)/(-2)=(z-7...

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  16. Statement 1: The shortest distance between the lines x/2=y/(-1)=z/2 an...

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