Question

x के किस मान के लिए `[(1,2,1)][(1,2,0), (2,0,1), (1,0,2)][(0),(2),(x)] = 0` है |

Answer 1

यहाँ, `[(1,2,1)][(1,2,0), (2,0,1), (1,0,1)][(0),(2),(x)]` = 0

⇒ `[(1,2,1)][(0 + 4 + 0),(0 + 0 + x),(0 + 0 + 2x)] = 0`

`⇒ [(1,2,1)][(4),(x),(2x)] = 0`

⇒ [4x + 2x + 2x] = 0

⇒ 4x + 4 = 0

⇒ 4x = -4

∴ `x = -4/4 = -1`