Question

If A = `[(4, x),(0, 1)]`, B = `[(2, 12),(0, 1)]` and A = B², the value of x is ______.

विकल्प

• 38

• – 6

• – 36

• 36

Answer 1

If A = `[(4, x),(0, 1)]`, B = `[(2, 12),(0, 1)]` and A = B², the value of x is 36.

Explanation:

Given A = B²

`\implies [(4, x),(0, 1)] = [(2, 12),(0, 1)][(2, 12),(0, 1)]`

= `[(4 + 0, 24 + 12),(0 + 0, 0 + 1)]`

`\implies [(4, x),(0, 1)] = [(4, 36),(0, 1)]`

∴ x = 36