Question

If A `= [(2"x", 0),("x","x")] "and A"^-1 = [(1,0),(-1,2)],` then x equals ____________.

पर्याय

• 2

• `-1/2`

• 1

• `1/2`

Answer 1

If A `= [(2"x", 0),("x","x")] "and A"^-1 = [(1,0),(-1,2)],` then x equals `underline(1/2)`.