Advertisements
Advertisements
प्रश्न
If A = `|(17 , 5 , 19),(11 , 8 , 13)|` and B =`|(9,3,7),(1,6,5)|` , find 2A - 3B
उत्तर
A = `|(17 , 5 , 19),(11 , 8 , 13)|_(2 xx 3)` B = `|(9,3,7),(1,6,5)|_(2 xx 3)`
2A - 3B = `|(34 , 10 , 38) , (22 , 16 , 26)| - |(27,9 , 21),(3 , 18 , 15)|`
`= |(7 , 1 , 17),(19 , - 2 , 11)|_(2 xx 3)`
APPEARS IN
संबंधित प्रश्न
Find the value of and 'y' if:
`2[(x,y),(9 , (y - 5))] + [(6,4),(-7,5)] = [(10,7),(22,15)]`
if `A = [(3,x),(0,1)], B = [(9,16),(0,-y)]`, Find x and y where `A^2 = B`
Find x and y, if
`[(-3, 2),(0, -5)] [(x),(2)] = [(-5), (y)]`
If A = `[(1 , 0),(-1 ,7)]` and I = `[(1 , 0),(0 ,1)]`, then find k so that A2 = 8A + kI.
Evaluate x,y if
`[(3 , -2),(-1 , 4)][(2x),(1)]+2[(-4),(5)] = [(8),(4y)]`
If `"A" = [(a , b),(c , d)] and "I" = [(1 , 0),(0 , 1)]` show that A2 - (a + d) A = (bc - ad) I.
If `[(x + 3, 4),(y - 4, x + y)] = [(5, 4),(3, 9)]`,find values of x and y
Find the values of x, y, a and b if `[(x - 2, y),(a + 2b, 3a - b)] = [(3, 1),(5, 1)]`
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 A + B = `[(1, 0),(1, 1)]` and A – 2B = `[(-1, 1),(0, -1)]` then A is equal to
