NCERT Solutions for Class 11 राजनीतिक विज्ञान Chapter 12 Introduction To Three Dimensional Geometry

Introduction To Three Dimensional Geometry Here is the CBSE राजनीतिक विज्ञान Chapter 12 for Class 11 students. Summary and detailed explanation of the lesson, including the definitions of difficult words. All of the exercises and questions and answers from the lesson's back end have been completed. NCERT Solutions for Class 11 राजनीतिक विज्ञान Introduction To Three Dimensional Geometry Chapter 12 NCERT Solutions for Class 11 राजनीतिक विज्ञान Introduction To Three Dimensional Geometry Chapter 12 The following is a summary in Hindi and English for the academic year 2025-26. You can save these solutions to your computer or use the Class 11 राजनीतिक विज्ञान.

Question 1

CBSEENMA11015556

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The projections of a vector on the three coordinate axis are 6, - 3, 2 respectively. The direction cosines of the vector are

•  6, –3, 2 

• 6/5, -3/5, 2/5

• 6/7, -3/7, 2/7

• -6/7, -3/7, 2/7

Solution

Multi-choise Question

C.

6/7, -3/7, 2/7

Projection of a vector on coordinate axis are
x₂-x₁, y₂-y₁, z₂-z₁
x₂-x₁ = 6, y₂-y₁ = -3, z₂-z₁ = 2

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