2i*5i please help me im in need!!?

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2007-11-08 18:40:46 · 3 answers · asked by Ant J 1 in Science & Mathematics ➔ Mathematics

2i*5i = -10.

2007-11-08 18:46:09 · answer #1 · answered by Demiurge42 7 · 0⤊ 0⤋

2i*5i=10i^2=10*(-1)=-10

remember that:
i^2 = -1

2007-11-09 02:43:54 · answer #2 · answered by Anonymous · 0⤊ 0⤋

10i^2.

2007-11-09 07:20:32 · answer #3 · answered by Sasi Kumar 4 · 0⤊ 0⤋