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Hadley Andrews
Mathematics
4 December, 07:57
Positive root seven times negative root seven
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Williamson
4 December, 08:22
0
7i
=√7 * √-7
=√ (7*-7)
=√-49
= i √49
=7i : you cannot square root a negative number so you take out an imaginary number which is i, making it possible to square root.
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