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P and q are complex number's where p equals 2 plus 5i and q equals 6 minus i - find pq?
Wiki User
∙ 14y ago
p = (2 + 5i)
q = (6 - i)
pq = (2 + 5i) (6 - i)
pq = 12 + 30i - 2i - 5i2
pq = 12 + 28i + 5
pq = 17 + 28i
Its the same as multiplying polynomials. Just multiply all the combinations of terms, group, and simplify.
Wiki User
∙ 14y ago
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