Find the value of Expressions when m = 2, n = – 1 : mn – 2.

1.	Find the value of Expressions when m = 2, n = – 1 : mn – 2.
Answer» Given expression is mn – 2 If m = 2, n = – 1, then mn – 2 = 2 × (-1)-2 = – 2 – 2 = – 4 ∴ If m = 2, n = – 1, then mn – 2 = – 4

Answer»

Given expression is mn – 2

If m = 2, n = – 1, then

mn – 2 = 2 × (-1)-2

= – 2 – 2 = – 4

∴ If m = 2, n = – 1, then mn – 2 = – 4

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