Write -0.5i^3 (3i - 4) - 3i^2 in simplest a + bi form
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1 Expert Answer
Howard J. answered • 10/17/19
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Principal Mechanical Engineer with >30 years' math coaching experience
Write -0.5i^3 (3i - 4) - 3i^2 in simplest a + bi form
As usual I show all steps:
-0.5i(i2)(3i-4)-3(i)2 = -0.5i(-1)(3i-4)-3(-1)
= 0.5i(3i-4)+4 = 1.5i2-2i+4 = 1.5(-1)-2i+4
= -1.5-2i+4 = 4-1.5-2i = 2.5 - 2i
If you need more help let me know.
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Paul M.
10/17/19