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 Determinants Exercise 4.2 Previous Next Class 12 Determinants Exercise…
4. (i) Find equation of line joining (1, 2) and (3, 6) using determinants. Determinants Exercise 4.2 Previous Next Class 12 Determinants Exercise 4.2 1. Find area of the triangle with vertices at the point given in each of the…
3. Find values of k if area of triangle is 4 sq. units and vertices are: (i) (k, 0), (4, 0), (0, 2) (ii) (–2, 0), (0, 4), (0, k). Determinants Exercise 4.2 Previous Next Class 12 Determinants Exercise 4.2…
2. Show that points A(a, b+c), B(b, c+a), C(c, a+b) are collinear. Determinants Exercise 4.2 Previous Next Class 12 Determinants Exercise 4.2 1. Find area of the triangle with vertices at the point given in each of the following: (i) …
1. Find area of the triangle with vertices at the point given in each of the following: (i) (1,0), (6,0), (4,3) (ii) (2,7), (1,1), (10,8) (iii) (–2,–3), (3,2), (–1,–8) Determinants Exercise 4.2 Previous Next Class 12 Determinants Exercise 4.2…
8. If (begin{vmatrix}x & 2 \18 & x end{vmatrix})=(begin{vmatrix}6 & 2 \18 & 6 end{vmatrix}), then x is equal to: (A) 6 (B) ±6 (C) -6 (D) 0 Determinants Exercise 4.1 Previous Next Class 12 Determinants Exercise 4.1 Evaluate the…
7. Find values of x, if (i) (begin{vmatrix}2 & 4 \5 & 1 end{vmatrix})=(begin{vmatrix}2x & 4 \6 & x end{vmatrix}) (ii) (begin{vmatrix}2 & 3 \4 & 5 end{vmatrix})=(begin{vmatrix}x & 3 \2x & 5 end{vmatrix}) Determinants Exercise 4.1 Previous Next Class…
6. If (A=begin{vmatrix}1 & 1 & -2 \ 2 & 1 & -3 \ 5 & 4 & -9 end{vmatrix}), find |A|. Determinants Exercise 4.1 Previous Next Class 12 Determinants Exercise 4.1 Evaluate the determinants in Exercise 1 and 2.…
5. Evaluate the determinants (i) (begin{vmatrix}3 & -1 & -2 \ 0 & 0 & -1 \ 3 & -5 & 0 end{vmatrix}) (ii) (begin{vmatrix}3 & -4 & 5 \ 1 & 1 & -2 \ 2 & 3 &…
4. If (A=begin{vmatrix}1 & 0 & 1 \ 0 & 1 & 2 \ 0 & 0 & 4 end{vmatrix}), then show that |3A|=27|A|. Determinants Exercise 4.1 Previous Next Class 12 Determinants Exercise 4.1 Evaluate the determinants in Exercise 1…
