Advertisements
Advertisements
प्रश्न
Evaluate the following :
`|(2 , -5),(0 , -3)| |(1 , -1),(3 , 2)|`
उत्तर
`|(2 , -5),(0 , -3)|_(2 xx 2) |(1 , -1),(3 , 2)|_(2 xx 2)`
= `|(2 - 15 , -2-10),(0 - 9 , 0 - 6)|`
= `|(-13 , -12),(-9 , -6)|_(2 xx 2)`
APPEARS IN
संबंधित प्रश्न
if `A [(3,7),(2,4)], B = [(0,2),(5,3)]` and `C = [(1,-5),(-4,6)]` Find AB - 5C
If A = `[(3, 1),(-1, 2)]` and I = `[(1, 0),(0, 1)]`, find A2 – 5A + 7I.
If A = `[(2, 1, -1),(0, 1, -2)]`, Find At . A where At is the transpose of matrix A.
Evaluate:
`[(cos 45°, sin 30°),(sqrt(2) cos 0°, sin 0°)] [(sin 45°, cos 90°),(sin 90°, cot 45°)]`
Given A = `[(p, 0),(0, 2)]`, B = `[(0, -q),(1, 0)]`, C = `[(2, -2),(2, 2)]` and BA = C2. Find the values of p and q.
Find X and Y, if
`[(2x, x),(y , 3y)][(3),(2)] = [(16),(9)]`
Evaluate x,y if
`[(3 , -2),(-1 , 4)][(2x),(1)]+2[(-4),(5)] = [(8),(4y)]`
Choose the correct answer from the given four options :
If `[(x - 2y, 5),(3, y)] = [(6, 5),(3, -2)]` then the value of x is
Choose the correct answer from the given four options :
If `[(x + 2y, 3y),(4x, 2)] = [(0, -3),(8, 2)]` then the value of x – y is
Given matrix, X = `[(1, 1),(8, 3)]` and I = `[(1, 0),(0, 1)]`, prove that X2 = 4X + 5I
