3 cos: 12 + jsin + j sin - 4 Simplify Express answer in rectangular form.

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A: See the details solution in below

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A: Thanks for the question :)And your upvote will be really appreciable ;)

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Q: the squ tS ol mplex 5л 5л 9 (cos () + i sin()). Select all correct Z = 9 9. answers.

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A: given    r = sin(θ ) + 8

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A: Given that sinϕsec-1ϕx2+164. That is, secϕ=x2+164ϕ=sec-1x2+164

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Q: 23. r = sin 0 (Hint: Convert to rectangular.)

A: There is no such introduction for the solution.I have explained it within the solution.Please go…