# NCERT Class 12-Mathematics: Chapter – 11 Three Dimensional Geometry Part 12 (For CBSE, ICSE, IAS, NET, NRA 2022)

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**Question 39**:

The vector equation of the line is ________.

**Answer**:

**Question 40**:

The vector equation of the line through the points and is ________.

**Answer**:

**Question 41**:

The cartesian equation of the plane is ________.

**Answer**:

## State True or False for the Statements in Each of the Exercises 42 to 49

**Question 42**:

The unit vector normal to the plane is .

**Answer: True**

**Question 43**:

The intercepts made by the plane on the co-ordinate axis are

**Answer: True**

**Question 44**:

The angle between the line and the plane is .

**Answer: False**

**Question 45**:

The angle between the planes and is .

**Answer: False**

**Question 46**:

The line lies in the plane .

**Answer: True**

**Question 47**:

The vector equation of the line is .

**Answer: True**

**Question 48**:

The equation of a line, which is parallel to and which passes through the point , is .

**Answer: False**

**Question 49**:

If the foot of perpendicular drawn from the origin to a plane is , then the equation of plane is .

**Answer: True**