Question

$\sqrt{40 {}^{2} - 41 }^{2}$

Answer 1

120 os ridt answ ygzs the answer may help u

Answer 2

Here is your Answer dude!
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$\sqrt{ {40 }^{2} { - (41)}^{2} } \\ \\ = \sqrt{1600 - 1681} \\ \\ = \sqrt{ - 81 } \\ \\ = 9i \: ans$

here are negative sign which is value i^2 = -1