(No need to memorize trig identities) Write down the trigonometric identities obtained by writing out and equating the real and imag- nary parts of the following complex exponentials on both sides of the equalities below, using Euler's identity: a) e³(01+0₂) ejo¹ ej0₂ b) ej(01-02) ejo₁ e-jo₂

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