Q. 178 B5.0( 2 Votes )

# If a = – 1, b = 2, then find the value of the following:

a^{b} – b^{a}

Answer :

By substituting the values of a and b in given equation, we get,

⇒ (-1)^{2} - (2)^{-1}

As we know by the property of negative exponents,

∴ the value of given expression is

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