Find the distance between the parallel planes x + 2y + 3z = 4 and x + 2y + 3z =

Practice Questions

Q1
Find the distance between the parallel planes x + 2y + 3z = 4 and x + 2y + 3z = 10. (2023)
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Questions & Step-by-Step Solutions

Find the distance between the parallel planes x + 2y + 3z = 4 and x + 2y + 3z = 10. (2023)
  • Step 1: Identify the equations of the two parallel planes. The first plane is x + 2y + 3z = 4 and the second plane is x + 2y + 3z = 10.
  • Step 2: Recognize that the distance between two parallel planes can be calculated using the formula: Distance = |d1 - d2| / √(a² + b² + c²), where d1 and d2 are the constant terms from the plane equations.
  • Step 3: Identify d1 and d2 from the plane equations. Here, d1 = 4 and d2 = 10.
  • Step 4: Calculate the absolute difference between d1 and d2: |4 - 10| = | -6 | = 6.
  • Step 5: Identify the coefficients a, b, and c from the plane equations. In this case, a = 1, b = 2, and c = 3.
  • Step 6: Calculate the value of √(a² + b² + c²): √(1² + 2² + 3²) = √(1 + 4 + 9) = √14.
  • Step 7: Substitute the values into the distance formula: Distance = 6 / √14.
  • Step 8: The final answer for the distance between the two parallel planes is 6 / √14.
  • Distance Between Parallel Planes – The formula for the distance between two parallel planes of the form Ax + By + Cz = d is given by |d1 - d2| / √(A² + B² + C²).
  • Understanding Plane Equations – Recognizing that the coefficients of x, y, and z in the plane equations are the same indicates that the planes are parallel.
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