Practice Equation of a Line in Space - 5 | 6. Three Dimensional Geometry | ICSE Class 12 Mathematics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Write the vector form of a line passing through point A(1, 2, 3) with direction ratios (1, 2, 3).

💡 Hint: Use the formula \\( \\vec{r} = \\vec{a} + \\lambda \\vec{b} \\).

Question 2

Easy

What is the parametric equation of a line with point (0, 0, 0) and direction vector (1, 1, 1)?

💡 Hint: Remember to express each coordinate in terms of \\( \\lambda \\).

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

Which form expresses a line using a direction vector?

  • Parametric Form
  • Symmetric Form
  • Vector Form

💡 Hint: Think about the way each form is structured.

Question 2

True or False: The parametric form can be used to find specific points on the line.

  • True
  • False

💡 Hint: Recall how we use \\( \\lambda \\) in those equations.

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Challenge Problems

Push your limits with challenges.

Question 1

Given a point A(2, 3, 4) and direction ratios (1, -1, 2), write the equations in all three forms: vector, parametric, and symmetric.

💡 Hint: Use the initial point and direction ratios for conversions.

Question 2

Prove that the point (3, 4, 5) lies on the line defined by \( \frac{x-1}{2} = \frac{y+1}{-1} = \frac{z-2}{3} \).

💡 Hint: Verify each coordinate substitution against the symmetric definitions.

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