z1 = 2 + 4i 22 = 5e2i Z3 = 4 cis 40°

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A: As we have a negative value for cos θ, θ must be in second or third quadrant.

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A: Let's find.

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Q: 3 and t <Os, then sece is equal to: 5 37t - 1. If sin 0 - 5 a) 4 4 b) 5 4 c) -

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