This calculator tutorial videos explain how to use a calculator and solve complex number-related calculations in Casio Calculator fx-991ES Plus 2nd edition scientific calculator.

This calculator trick video is made in vertical mode to help you easily learn how to use Casio Calculator fx-991ES Plus 2nd edition. Here we explain three things:

1. How to multiply complex numbers
2. how to find conjugate of a complex number
3. how to convert polar to rectangular and vice versa

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