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Find area of the triangle with vertices ...

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)`

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To find the area of a triangle given its vertices, we can use the formula based on determinants. The area \( A \) of a triangle with vertices at points \( (x_1, y_1) \), \( (x_2, y_2) \), and \( (x_3, y_3) \) is given by: \[ A = \frac{1}{2} \left| \begin{vmatrix} x_1 & y_1 & 1 \\ x_2 & y_2 & 1 \\ x_3 & y_3 & 1 \end{vmatrix} \right| ...
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NCERT ENGLISH-DETERMINANTS-All Questions
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  2. Find the inverse the matrix (if it exists)given in[(1, 0, 0),( 0,cosal...

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

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  4. Show that pointsA (a , b + c), B (b , c + a), C (c , a + b)are collin...

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  5. If A=|[3, 2], [7, 5]| and B=|[6 ,7], [8, 9]| , verify that (A B)^(-1)=...

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  9. If x, y, z are non-zero real numbers, then the inverse of matrix A=[(...

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  10. If a, b, c, are in A.P, then the determinant |(x+2,x+3,x+2a),( x+3,x+4...

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  11. Solve the system of equations2/x+3/y+(10)/z=4,4/x-6/y+5/z=1,6/x+9/y-(2...

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  12. Using properties of determinants. Prove that |(sinalpha,cosalpha,cos(a...

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  13. Using properties of determinants. Prove that|[1 ,1+p,1+p+q],[2, 3+2p,4...

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  14. Using properties of determinants. Prove that|[3a,-a+b,-a+c],[-b+a,3b,-...

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  15. Using properties of determinants, prove the following: |xx^2 1+p x...

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  16. Using properties of determinants. Prove that|(alpha,alpha^2,beta+gamma...

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  17. Evaluate |[1,x, y],[1,x+y, y],[1,x,x+y]|

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  18. Write Minors and Cofactors of the elements of following determinants:...

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  19. Using Cofactors of elements of second row, evaluate Delta=|(5, 3, 8),(...

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  20. Write Minors and Cofactors of the elements of following determinants:...

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