# NCERT Solutions for Class 12 Maths Determinants

Hi Students, Welcome to **Amans Maths Blogs (AMB)**. In this post, you will get the * NCERT Solutions for Class 12 Maths Determinants Exercise 4.3*. This

**can be downloaded in PDF file. The downloading link is given at last.**

*NCERT Solutions** NCERT Solutions for Class 12 Maths* are not only the solutions of Maths exercise but it builds your foundation of other important subjects. Getting knowledge of depth concept of

*like Algebra, Calculus, Trigonometry, Coordinate Geometry help you to understand the concept of Physics and Physical Chemistry.*

**CBSE Class 12**^{th}Maths* CBSE Class 12^{th}* is an important school class in your life as you take some serious decision about your career. And out of all subjects, Maths is an important and core subjects. So

*is major role in your exam preparation as it has detailed chapter wise solutions for all exercise.*

**CBSE NCERT Solutions for Class 12**^{th}MathsAs we know that all the schools affiliated from CBSE follow the NCERT books for all subjects. You can check the **CBSE NCERT Syllabus**. Thus, * NCERT Solutions* helps the students to solve the exercise questions as given in

*.*

**NCERT Books**## NCERT Solutions for Class 12 Maths Determinants Exercise 4.3

**NCERT Solutions for Class 12 Maths Determinants ****Exercise**** 4.3: Ques No 1.**

Find area of the triangle with vertices at the point given in each of the following

(i) (1, 0), (6, 0), (4, 3)

**NCERT Solutions:**

(ii) (2, 7), (1, 1), (10, 8)

**NCERT Solutions:**

(iii) (–2, –3), (3, 2), (–1, –8)

**NCERT Solutions:**

**NCERT Solutions for Class 12 Maths Determinants ****Exercise**** 4.3: Ques No 2.**

Show that points A(a, b + c), B(b, c + a), C(c, a + b) are collinear.

**NCERT Solutions:**

**NCERT Solutions for Class 12 Maths Determinants ****Exercise**** 4.3: Ques No 3.**

Find values of k if area of triangle is 4 sq. units and vertices are

(i) (k, 0), (4, 0), (0, 2)

**NCERT Solutions:**

(ii) (–2, 0), (0, 4), (0, k)

**NCERT Solutions:**

**NCERT Solutions for Class 12 Maths Determinants ****Exercise**** 4.3: Ques No 4.**

(i) Find equation of line joining (1, 2) and (3, 6) using determinants

**NCERT Solutions:**

(ii) Find equation of line joining (3, 1) and (9, 3) using determinants.

**NCERT Solutions:**

**NCERT Solutions for Class 12 Maths Determinants ****Exercise**** 4.3: Ques No 5.**

If area of triangle is 35 sq units with vertices (2, – 6), (5, 4) and (k, 4). Then k is

(A) 12

(B) –2

(C) –12, –2

(D) 12, –2

**NCERT Solutions:**