Advertisements
Advertisements
प्रश्न
Find the value of x, if `|(x, -1, 2),(2x, 1, -3),(3, -4, 5)|` = 29
उत्तर
`|(x, -1, 2),(2x, 1, -3),(3, -4, 5)|` = 29
∴ `x|(1, -3),(-4, 5)| -(-1) |(2x, -3),(3, 5)| + 2 |(2x, 1),(3, -4)|` = 29
∴ x(5 – 12) + 1(10x + 9) + 2(– 8x –3) = 29
∴ – 7x + 10x + 9 – 16x – 6 = 29
∴ – 13x + 3 = 29
∴ – 13x = 26
∴ x = – 2
APPEARS IN
संबंधित प्रश्न
Evaluate the following determinant:
`|(4, 7),(-7, 0)|`
Solve the following equation : `|(1, 4, 20),(1, -2, 5),(1, 2x, 5x^2)| = 0`
Without expanding evaluate the following determinant:
`|(2, 7, 65),(3, 8, 75),(5, 9, 86)|`
Evaluate `|(3,-2,4),(2,0,1),(1,2,3)|`
Solve: `|(7,4,11),(-3,5,x),(-x,3,1)|` = 0
The value of x if `|(0,1,0),(x,2,x),(1,3,x)|` = 0 is
Solve: `|(x,2,-1),(2,5,x),(-1,2,x)|` = 0
Evaluate the following determinants :
`|(4,7),(-7,0)|`
Evaluate the following determinants :
`|(3,-5,2),(1,8,9),(3,7,0)|`
Evaluate the following determinants:
`|(a,h,g), (h,b,f), (g,f,c)|`
Evaluate the following determinant:
`|(3,-5,2),(1,8,9),(3,7,0)|`
Without expanding evaluate the following determinant.
`|(1,a,a + c),(1,b,c + a),(1,c,a + b)|`
Evaluate the following determinants:
`|(1, i, 3),(i^3, 2, 5),(3, 2, i^4)|`
Evaluate the following determinant:
`|(a, h, g),(h, b, f),(g, f, c)|`
Evaluate the following determinant:
`|(4 ,7),(-7 ,0)|`
Evaluate the following determinant:
`|(4,7),(-7,0)|`
Evaluate the following determinant:
`|(a,h ,g), (h,b,f), (g,f,c)|`
Without expanding evaluate the following determinant.
`|(1,a,b+c),(1,b,c+a),(1,c,a+b)|`
Find the value of x if `|(x, 2x, 3),(-1, 1, -4),(3, -3, 5)|` = 29
Evaluate the following determinant:
`|("a","h","g"),("h","b","f"),("g","f","c")|`
