The value of $a^{b} - b^{a}$ , if $a = 3, b = 7$ is _________.

1825

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1840

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1844

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1850

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Solution

The correct option is C $1844$
We need to find value of $a^{b} - b^{a}$
Given that $a = 3, b = 7$
Substituting values of $a$ & $b$ , we get
$3^{7} - 7^{3} = 2187 - 343 = 1844$

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