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junior college 2 | H2 Maths
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Rae Kuan
Rae Kuan

junior college 2 chevron_right H2 Maths chevron_right Singapore

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Date Posted: 2 years ago
Views: 274

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Tham KY
Tham Ky's answer
6052 answers (Tutor Details)
Rae Kuan
Rae Kuan
2 years ago
The purpose of multiplying the equations in the first step is essentially like using the elimination method when solving simultaneous right?
Tham KY
Tham KY
2 years ago
Yes. Easy to use elimination method in complex number than substitution method...
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Tham KY
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Rae Kuan
Rae Kuan
2 years ago
May i clarify why arg(u) is 0?
Tham KY
Tham KY
2 years ago
Not 0, is detta..
Tham KY
Tham KY
2 years ago
Polar form: re^(i detta)= r[cos(detta)+i sin(detta)]
Rae Kuan
Rae Kuan
2 years ago
oh right, it is arg(sin(θ)) that is 0. thanks
Tham KY
Tham KY
2 years ago
sin(detta) is a purely real number. Given 0