Advertisements
Advertisements
प्रश्न
Choose the correct answer from the given four options :
If `[(x + 2y, -y),(3x, 7)] = [(-4, 3),(6, 4)]` then the values of x and y are
पर्याय
x = 2, y = 3
x = 2, y = – 3
x = – 2, y = 3
x = 3, y = 2
उत्तर
`[(x + 2y, -y),(3x, 7)] = [(-4, 3),(6, 4)]`
Comparing, we get
3x = 6
⇒ = 2
⇒ -y = 3
⇒ y = – 3
x = 2, y = -3.
APPEARS IN
संबंधित प्रश्न
if `A [(3,7),(2,4)], B = [(0,2),(5,3)]` and `C = [(1,-5),(-4,6)]` Find AB - 5C
Given A = `[(3, -2),(-1, 4)]`, B = `[(6),(1)]`, C = `[(-4),(5)]` and D = `[(2),(2)].` Find : AB + 2C – 4D
Given `[(2, 1),(-3, 4)] X = [(7), (6)]` write the order of matrix x
If A = `[(0, -1),(4, -3)]`, B = `[(-5),(6)]` and 3A × M = 2B; find matrix M.
Find x and y, if `((x,3x),(y, 4y))((2),(1)) = ((5),(12))`.
If `"A" = [(1 , 2),(-2 , 3)], "B" = [(2 , 1),(2 , 3)] "C" = [(-3 , 1),(2 , 0)]` verify that
A(B + C) = AB + AC.
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
Choose the correct answer from the given four options :
If B = `[(1, 5),(0, 3)]` and A – 2B = `[(0, 4),(-7, 5)]` then the matrix A is equal to
Find a and b if `[(a - b, b - 4),(b + 4, a - 2)] [(2, 0),(0, 2)] = [(2, -2),(14, 0)]`
Given matrix, X = `[(1, 1),(8, 3)]` and I = `[(1, 0),(0, 1)]`, prove that X2 = 4X + 5I