Category: class 12

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

4. (i) Find equation of line joining (1, 2) and (3, 6) using determinants. Determinants Exercise 4.2 Previous

3. Find values of k if area of triangle is 4 sq. units and vertices are: (i) (k,

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

1. Find area of the triangle with vertices at the point given in each of the following: (i) 

8. If (begin{vmatrix}x & 2 \18 & x end{vmatrix})=(begin{vmatrix}6 & 2 \18 & 6 end{vmatrix}), then x is

7. Find values of x, if  (i) (begin{vmatrix}2 & 4 \5 & 1 end{vmatrix})=(begin{vmatrix}2x & 4 \6 &

6. If (A=begin{vmatrix}1 & 1 & -2 \ 2 &  1 & -3 \ 5 & 4 &

5. Evaluate the determinants (i) (begin{vmatrix}3 & -1 & -2 \ 0 & 0 & -1 \ 3

4. If  (A=begin{vmatrix}1 & 0 & 1 \ 0 &  1 & 2 \ 0 & 0 &